Nylofume® Pack Liner Bags

$2.49 - $7.10
(70 reviews) Write a Review
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  • Fully waterproof
  • Odor resistant barrier
  • Tougher than compactor bags
  • Ultralight – 0.91 oz (25.9 g)


Nylofume® Pack Liner Bags are fully waterproof to keep your gear dry. They’re made from a special nylon film that's also an odor resistant barrier to help keep your food and smellables under bear radar. Originally made to protect food and medicine during home fumigations, these bags make great backpack liners.

Nylofume bags have been known to last on thru hikes and are found tougher than trash compactor bags which eventually develop pinholes. And they’re lighter at just 0.91 oz (25.9 g).

The material is clear to help you see where things are inside. To seal, simply twist, fold over, and use rubber band. Or for a loose seal just fold over several times. They measure 20 x 37 in. (50.8 x 94 cm) and fit most lightweight backpacks, but the length can be cut down if necessary. Use one for all your gear or two to separate your sleeping bag/quilt and clothes from your food/smellables and wet gear.



Material: Nylon polymer film, 1 mil thick, clear, unscented

Size: 20 x 37 in. (50.8 x 94 cm) flat bag, ungusseted


   To the Top: 3168 cu in. (51.9 L), based on 8 x 12 x 33 in. (20.3 x 30.5 x 83.8 cm) to the top, flat bag with ungusseted bottom

   Usable with Tie Off: 2592 cu in. (42.5 L) with 6 in. (15.2 cm) reserved for tie off at the top

Weight: 0.91 oz (25.9 g)



  • To avoid danger of suffocation, keep this plastic bag away from babies and children.
  • Do NOT use this bag in cribs, beds, carriage, or playpens.
  • This bag is NOT a toy.

In no event shall Litesmith, LLC be liable for any direct, indirect, punitive, incidental, or special consequential damages, to property or life, whatsoever arising out of or connected with the use or misuse of its products.

70 Reviews Hide Reviews Show Reviews

  • 5
    It works!

    Posted by Dave on 14th Apr 2024

    Have used ONE for 3+ years, no rips or tears Lightweight and works great. Simple as that!!

  • 5
    NYLOFUME bags

    Posted by Srossi on 4th Apr 2024

    Great bag for an extra layer of water proofing inside your backpack. Have used these in the past with great results - having a dry sleeping bag is huge!

  • 5
    Ultralight & Functional

    Posted by Dustin Buttigieg on 5th Mar 2024

    When I started backpacking I began with an Osprey bag liner, as I progressed with upgrading to lighter and lighter gear, I transitioned to the tried and true trash bag as a pack liner. Now I have evolved to using these bags to line my 60L pack. Just finished a 3-day section hike on the AT. These bags are tougher than they look, are definitely reusable, easily handle trail conditions, and when they do wear out they can simply become a regular ole trash bag. Just so you know, the bag is not quite big enough to tie off if a 60L pack is truly jam packed, but almost. And that’s not really an issue for me. I’m really just using these to keep my tent, clothing and sleeping bag dry. Cheap and it works. What more do you need?

  • 5
    Best Pack Liner

    Posted by Evan on 30th Dec 2023

    I’ve tried nylofume bags sold by other vendors, and they’ve proven to be significantly less strong and louder than the Litesmith ones. As usual, Litesmith has found the absolute best product.

  • 5
    Excellent pack liner

    Posted by Mike on 9th Dec 2023

    Great that it is an odor barrier...for those rare nights when I keep my food in the tent I store it in my 2 pack liner bags....

  • 5
    Love the new quieter material!

    Posted by Unknown on 6th Jul 2023

    Finally had to order a new liner after years of use and love the new quieter material! Seems just as durable as the old formulation, and is of course just as waterproof! Full day of hiking in a downpour and all of my gear was still dry. If I could give 10 stars I would! [Litesmith] The product has not changed.

  • 5
    Sturdy and Simple

    Posted by Unknown on 21st May 2023

    Lightweight and essential piece of gear.

  • 5
    Keepin' it Dry!

    Posted by Unknown on 23rd Apr 2023

    Lightweight packliner. Just what I need to keep my stuff dry.

  • 5
    No Leaks

    Posted by Unknown on 22nd Nov 2022

    Been using these backpack liners for years. I do not use stuff sacks. All of my downy goodness and clothes go in the backpack before I twist the liner off. Food and rain gear go next. I have never had a bag leak on me and I have 100 percent confidence in these liners. These are a must have for me.

  • 5

    Posted by Unknown on 1st Jul 2022

    Used it inside my pack while hiking and slid my pack into it to store it in the vestibule at night.

  • 5
    Lasts >1000 miles

    Posted by Zen on 28th Feb 2022

    In roughly 2,200 miles, I’ve gone through two of these liners. The first separated at the bottom, and the second got a cut in it. I love that they’re 100% waterproof, durable, and lightweight. I was worried about the crinkle, but never noticed any sound when it was in my pack. A little loud when actually packing it, but that’s a minute long ordeal, in a 24 hour day. I don’t think you could get a better pack liner for any price. I will continue to use these for as long as I backpack.

  • 5
    Quality Product

    Posted by Joe Schellenbach on 14th Feb 2022

    Fits my 55L pack with room to spare and lighter than a compactor bag.

  • 5
    Not bad at all.

    Posted by Unknown on 23rd Jan 2022

    Not sure if there's anything that can compares in terms of finding that sweet spot between durability, weight, and water resistence. These things work excellent for my needs, and the price is fair for what you're getting. I get a lot of uses out of one liner. Always a pleasure buying from Litesmith.

  • 5
    Awesome addition to back packing

    Posted by cutlass on 21st Jan 2022

    These bags are great and can save so much space in your pack.

  • 5
    Big enough to line a pack and keep bears safe.

    Posted by SlowBro on 25th Sep 2021

    Great product. As a pack liner, plenty big enough for a 60L pack and durable enough for a 400 mile trek. Kept everything dry in the pack. Used a second one to line my food sack, we were in grizzly country. Glad to say no bears visited our campsites during the month. So I'd say odor-proof, too. I don't think you will find a lighter alternative.

  • 5
    Durable, light, great size

    Posted by Bryan T Beck on 17th Sep 2021

    Fits my Zpacks Arc Haul perfectly. Plenty durable and much lighter than other pack liner options.

  • 5
    Works perfectly!

    Posted by Unknown on 14th Sep 2021

    These pack liners are the best on the market. Lightweight, yet sturdy, durable enough for my 12-day trip. Got caught in a torrential downpour, and everything in my pack stayed dry thanks to this liner. The extra few ounces are totally worth the peace of mind, and simply a great product and a great value.

  • 5
    Keeps it Dry!

    Posted by CBW on 10th Sep 2021

    Works perfectly, lasts long, super light. Good price!

  • 5
    so far so good!

    Posted by Kyleigh VanderWell on 29th Aug 2021

    Just got these liners and I took one out backpacking in some sand dunes. They fit well in my REI Flash 55. There was a storm and everything inside the bag stayed dry. It was lightweight and durable. This was only a one night trip, so I'm not sure how they hold up over time, but I would buy them from litesmith again because of the great service, accuracy, ease of purchase and communication from the company, and fair prices.

  • 5
    Great Service from Litesmith - Great Product

    Posted by Stephen Garlick on 29th Aug 2021

    Bought this as a replacement for my heavy plastic pack liner - this is much better- light, fits pack well and appears very durable The service from Litesmith was excellent - no hassle, products promptly dispatched , good communication. I would not hesitate to buy from Litesmith again - highly recommended

  • 5
    Perfect Ultralight Packliner

    Posted by Tyler on 16th Jun 2021

    .9 Oz and super cheap. Very durable so far.

  • 5
    great UL pack liner

    Posted by TRENT AISNER on 13th Jun 2021

    Ultra light, durable and inexpensive. These nylofume bags are amazing

  • 5
    Who needs a fancy compression bag?!!

    Posted by Chris on 11th Jun 2021

    This is super light weight and very durable. I use this to stuff my quilts in (hammock camper) press down, twist the excess bag and fold it under itself and then place into the bottom of my pack. For the cost this is a no brainer, no need for a fancy DCF rolltop or draw string baggie at 10-15x the cost.

  • 5
    Lite not flimsy

    Posted by Sandra D. on 8th Jun 2021

    As durable as a trash compactor bag but much lighter and clear. At first I didn't trust they'd last, but they do.

  • 5
    Light weight and durable

    Posted by Eric C on 22nd May 2021

    These pack liners are a game changer for me. They are light, durable, thin, and, most importantly, very water resistant. They are also clear, which is a big benefit for me as it makes it easier to see the contents of my pack. I use one of these for my 48L pack and another one for my small day pack, which I cut into a smaller size to better fit the small pack.

  • 5
    Great Product

    Posted by Unknown on 1st Apr 2021

    Really quality stuff, and shipped fast!

  • 5
    UL Packliner

    Posted by Unknown on 29th Mar 2021

    Lives up to the reputation.

  • 5
    Pas déçu

    Posted by Unknown on 15th Mar 2021

    Conforme à la description du produit.

  • 5
    Great Quality

    Posted by Unknown on 12th Mar 2021

    Very happy with this product. It is light weight and does not tear easily.

  • 4
    light, good size, loud

    Posted by Gray on 8th Mar 2021

    Mine clocks in at 1.1 oz. Fits my 60L mariposa perfectly. The crinkle noise is LOUD. Thankfully it's only noisy when packing and unpacking, and not walking (at least for me).

  • 5
    light and durable

    Posted by Jamen on 15th Feb 2021

    Extremely light weight and durable compared to a trash bag. My new go to pack liner!

  • 4
    Excellent product

    Posted by David Colbert on 8th Feb 2021

    I've used compactor bags for many years as pack liners. They are very tough and inexpensive. Recently I read about the Nylofume bags and how they were even tougher (though that is yet to be seen when compactor bags last for years!) and lighter (they are about an ounce lighter), so I thought I'd give them a try. I've only used them on one trip so far, but they worked great for compressing and protecting my down gear. Since they have odor resistant properties, I'll probably give them a try to line my bear bag as well. If there is one downside, it's that they make a crinkly sound like a chip bag. However, I didn't notice it once they were in my pack. The only reason they get four stars instead of five is that their longevity isn't proven yet.

  • 5
    Great Pack Liner

    Posted by Melanie Cantin on 7th Feb 2021

    I use these bags to protect my equipment in my backpack as well as in my bear canister

  • 5
    Great pack liner

    Posted by Dave on 18th Jan 2021

    These do the job and seem very strong. They don’t have any stretch like garbage bags.

  • 5
    Great company

    Posted by Jason on 13th Jan 2021

    I bought these liners for backpacking thinking I would give them a try , I was surprised how much lighter and truly stronger than the compactor bags I was using . Lol never thought I’d write a review for a damn bag lol

  • 5
    Great for backpacking

    Posted by Gene on 9th Jan 2021

    Bought a 3 pack last year and hiked 17 days on the Appalachian trail in GA and NC. Replaced the first bag after 10 days when I tore a hole in it with a tent pole. Still have one bag left. They weigh almost nothing (1oz/29g) but are very durable. I carried a second one just in case. They make a crinkly sound like a potato chip bag but it's not as noticeable after a couple days use. Much better than a trash compactor liner for keeping gear dry. Bought another 3 pack for this year.

  • 5
    Indispensable pour les randonneurs

    Posted by Unknown on 5th Jan 2021

    Un accessoire indispensable pour les randonneurs ultra léger!

  • 5
    Nylofume packliner bag

    Posted by Carla Markus on 24th Dec 2020

    I like these bags. Their durability is longer than other bags.

  • 4
    backpack liner

    Posted by ET on 1st Sep 2020

    have used the liner on one trip so far and it worked as described

  • 5

    Posted by ross cooper on 29th Aug 2020

    I haven’t tried this yet but it’s light and fits my sleeping pad and bag perfectly and will definitely keep everything dry

  • 5
    best pack liner

    Posted by outdoorsyWannaBe on 29th Aug 2020

    Best pack liner for all sizes. Also Durable .

  • 3
    1st one was punctured, thankfully they're cheap

    Posted by Jeff on 27th Aug 2020

    I originally bought just one and used it for a few overnights, nothing crazy and it worked out fine. Then i did a 14 day section hike of the AT and it somehow got two, 1/2 inch punctures in the mid bag. I'm still trying to figure out how that happened b/c all the reviews I've seen and usage reports from other hikers say these bags are practically indestructible. The only thing that i think it maybe could have been from is a rub mark on the dry bag latch that i use to keep my quilt and clothing in as thats the only thing in my pack that even has edges. If not that, maybe something in my front meshy pocket but i dont keep sharp objects in there either. I really have no idea. Regardless, i just bought 3 more. At the end of the day, they cost 2.50 so i'm not too concerned. More just mystified how my first one developed holes.

  • 5
    Lightweight, inexpensive, durable

    Posted by Gene E. on 18th Aug 2020

    I bought a three pack and the first bag was still keeping things dry after 10 days and nights on the Appalachian Trail and it rained every day! I had a 50 liter pack and the bag held all my clothes and sleeping gear. I like that they are lightweight and inexpensive. One reviewer complained about the crinkly noise (like a potato chip bag) which is true but the more I used the bag the less crinkly it sounded. On the last day of hiking I tore a hole in it with the backpack zipper. I put a piece of duct tape over the hole and used that same bag for six more days of AT hiking a few weeks later (only rained every other day on that trip). They work great!

  • 5
    Sturdy and Effective

    Posted by Unknown on 29th Jul 2020

    This is a great pack lining material. I like it better than a trash bag because it doesnt puncture unless you really want to poke a hole in it..which obviously you dont. Reusable. Does the job.

  • 5
    Perfect bag liner

    Posted by Unknown on 11th Jun 2020

    Heard of nylofume bags on r/Ultralight. Shipped out super quick from when I ordered. I was afraid I wouldn't get them before my overnight trip, but they arrived in time. Bag fit very well inside my Osprey Talon 44. It could for sure accommodate larger bags, though I don't have one to try so I can't say how large you can go. I think 55-60L would be fine. Material seems very tough, yet light. Fortunately, it didn't rain on me so I can't say how waterproof it is.

  • 5
    Nylofume Bags

    Posted by WoodcutterFL on 2nd Jun 2020

    June 2, 2020. Great for storage, long-lasting, and strong. The bags I received were the same as those given to me when the house was tented years ago and I still have and use some of those. They are stamped as nylofume on the bag. These bags are large, measure about 20 x 39 (overall 40x78). These work well for camping to keep things free of bugs and water pending on the closure.

  • 5
    great pack liner

    Posted by josh persinger on 5th Apr 2020

    Way lighter than contractor and compactor bags. Seems to be a very strong bag so far. Will definitely purchase again

  • 5
    Cottage Service!

    Posted by Chad Grissom on 19th Mar 2020

    There isn’t much else left to say, this is indeed THE pack liner. This liner fits beautifully inside my HMG 2400 Junction and can comfortably accommodate ALL my gear without presenting the fear of water escaping into the inside. You hear talk about these bags being “louder” than the competition when packing/unpacking, I was leery going into my first purchase due to this. I can proudly say, this bag is NOT loud and more importantly bomber! Enough about the bag, I’m sure at this point you have done enough research to realize this is the bag of the majority. What I would like to speak of is LiteSmith as a company! The members of this team are at the top of their game in terms of customer service, off trail “trail angels” if you will. I called (LATE) due to realizing I was out of liners and was only a few days away from escaping to the trail, I was advised to submit the order and ensured they would be to me without delaying my start day. Again, leery...go figure, I open my mailbox to realize that my liners had made it from CA —> TN in 2 DAYS! This alone is why LiteSmith has a customer for life. Customer service goes a long way, thanks guys!!

  • 5
    THE Pack Liner

    Posted by warren on 31st Jan 2020

    Strong, extra large/long... I can even use it to wrap my pack in it for a plane ride.

  • 5
    Surprisingly durable

    Posted by Monday on 25th Jan 2020

    As a long time user of compactor bags I was hesitant to try the nylofume liners. To my surprise they are incredibly durable, light, and fit perfectly in my pack. Litesmith’s listed weight was spot on and shipping was fast. Great product.

  • 5

    Posted by Unknown on 30th Dec 2019

    Very lite weight seems very tough material,just been in 2 night trip but worked very well

  • 5
    Perfect for Inside an Ursack

    Posted by MNron on 4th Aug 2019

    We use these as water- and odor-resistant liners inside our Ursacks. We have regular-size Ursacks, but I think these Nylofume bags would fit nicely inside the largest Ursacks, too. We "seal" them by twisting the extra bag material, then folding it back on itself, and holding it in that position with a 6" Holy Grail Bungee--quick & effective. One of ours has been used for 8 days in this manner; it shows lots of wrinkles but no signs of wear or tearing. This 3-pack should last us a long time.

  • 5
    Good size

    Posted by Unknown on 29th Jul 2019

    Bigger than the MLD ones. These fit my Arc Haul perfectly.

  • 5
    Exactly as advertised

    Posted by Unknown on 23rd Jul 2019

    It's a nylofume bag. It'll get the job done

  • 5
    can’t be beat

    Posted by Timothy S Deatherage on 14th Jun 2019

    I used one of these for the entire 800 miles of the Arizona Trail. It’s less than twice as light as a trash compactor bag and just as strong. Highly recommend!

  • 5

    Posted by Unknown on 25th May 2019

    Lighter and tougher than contractor bags. Plus, odorproof so can serve as food bag at camp too.

  • 5
    Better than I thought

    Posted by Jackie O on 12th May 2019

    I bought these on a whim, thinking they couldn't be much better than a compactor bag I usually use. But they are better, so much better. Such a silly thing to make me happier, but what can I say - nice backpacking things that make it easier, lighter - make me happy.

  • 5
    Does the job and lasts forever!

    Posted by Michelle on 5th Apr 2019

    I bought one of these pack liners over a year ago and it's still going strong. I bought a new one this time to line my day pack. Very durable, weighs next to nothing, keeps everything dry. I don't even use any stuff sacks anymore, just stuff everything loose in the liner bag.

  • 5
    Perfect Size

    Posted by Art on 18th Mar 2019

    Perfect size for keeping my bag & clothes protected.

  • 5
    SO Glad I Switched

    Posted by Chris from Florida on 22nd Jan 2019

    I'm glad I made the switch from a compactor bag to a Nylfume Pack Liner. I was so surprised that something this thin and lightweight could be so much better. Glad I found your site and products!

  • 5
    It works and it's light and I haven't torn it

    Posted by Langly on 30th Dec 2018

    Well it's a bag, it's light, it's transparent, it fits well in a Z-packs Nero, it kept everything dry, it's reasonably priced and it wasn't nearly as noisy as I thought it would be. No holes yet after a few days in cactus and rock country. I'd say it's a winner. Durability to be determined but it looks promising.

  • 5
    Good liner

    Posted by Unknown on 17th Dec 2018

    Right size for my bag (exos 48). Didn't have to endure wet conditions yet, but having a clear bag is an improvement over trash bags. I was expecting a bit of noise, as the material is crinkly - but that wasn't a problem.

  • 5
    Ninja-tested, hiker approved

    Posted by Jay on 8th Oct 2018

    I got these to help prevent raids by the infamous ninja squirrels of Havasu Falls and I can say that results are positive! There was no evidence of attack or even attempted attacks despite seeing multiple invaders around our campsite during our stay. I don't know how many victims there were among our fellow campers but good campsite hygiene certainly made us a less inviting target. The bags themselves are surprisingly durable for their thickness and I plan on reusing them for future trips which definitely increases the return on investment.

  • 5
    Very durable and light

    Posted by Phil on 30th Sep 2018

    Great pack liner with excellent durability. Very light and doesn't tear easily, it just stretches after applying some force.

  • 5
    Looks and feels like its going to last

    Posted by JEFF S on 4th Jul 2018

    these bags look and feel tough, perfect for a liner or bag , get a pack of 3

  • 5
    Strong Bag

    Posted by Marshall on 27th May 2018

    This bag is perfect, way lighter than trash compactor bag. The only compactor bag I have is in another country so I can't compare. This is how I found litesmith, I didn't want to purchase a whole box of compactor bags so I was researching alternatives and found a better option along the way. Pros: No waste (unless you own a compactor) Stronger Lighter No stretch (allows you to compact air out of your quilt as you pack Con: Just a little noisy (when your stuffing it its a little loud. its quiet after loaded up)

  • 5
    Lightest Pack Liner

    Posted by Unknown on 16th May 2018

    This is the lightest pack liner I have found, and other than the loud material (which I was expecting) it is perfect. Material noise is similar to a sun chip bag, and is only an issue if you are packing up while others sleep.

  • 5
    Amazing refinement in pack weight

    Posted by Dave on 9th May 2018

    This is fresh on the heels of my switch to a polycro ground cloth for my tent and a switch from Tyvek. Over time I'm getting more interested in getting lighter, and shockingly the groundcloth shaved six Oz from my load, and the bag liner looks like it's going to hold up swimmingly. Taking another oz off the pack will either help go lighter or facilitate another desired item to get added in. Either way, a win!

  • 5
    Easy, light and durable pack liner

    Posted by Unknown on 27th Apr 2018

    Trash compactor bags are pretty heavy for what a pack liner is supposed to be, but these bags are light weight and very durable. I'm able to fit most of my important gear (sleeping bag, etc.) that I want to keep dry in one comfortable. With a second one I can keep all my gear protected.

  • 5
    The best liner bags avialable

    Posted by Mark Bishop on 17th Feb 2018

    I really like these liner bags, they are stronger and lighter than trash compactor bags. Also transparent so easy to find things inside.