Tethered Caps - 28mm

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  • Customize your narrow mouth Vecto or Vesica
  • Replace a lost/broken cap
  • Tethered cap can’t be lost
  • Fits Smartwater bottles


These Tethered 28 mm Caps are for use on narrow mouth Vecto Water Bladders and Vesica Collapsible Bottles. The cap is tethered to the bladder/bottle so it can’t be lost.

Change the color of your Vecto or Vesica with one of these caps to differentiate from your hiking partner. Or use color to indicate use, for example clean or dirty water. Add a matching Tethered Slider to your Vecto or mis-match them to showcase your creativity.

Also fits 28 mm threaded water bottles - Smartwater, LIFEWTR, Aquafina, Desani. This will NOT fit on a 42 mm Wide Mouth Vecto or Vesica.



Thread: 28 mm

Material: Polypropylene (PP)

Weight: 0.14 oz (4 g)

5 Reviews Hide Reviews Show Reviews

  • 5
    Works great!

    Posted by Rick on 24th Jul 2023

    When filtering water into a Smartwater bottle I always had to stash the bottle cap into a pocket - then find it again when I was done. Now I just unscrew it and "let r hang". Not a big deal but one less thing to lose when stopping to filter water. Thanks!

  • 5
    Good Stuff

    Posted by Unknown on 14th Jan 2022

    I like the different colors for backpacking. Then I know which bottle is for bad water to be filtered and which is for drinking.

  • 5
    No more dirty caps

    Posted by Theresa Conarty on 6th Sep 2021

    Love the colored tethered caps! No more caps falling into the dirt or getting lost. The colors help differentiate whose bottles are whose. Highly recommended!

  • 5
    Replacement cap

    Posted by Larry Moran on 30th Mar 2021

    I bought this to change the blue one I had to differentiate from dirty water (orange) and my other blue (clean) bladder.

  • 5
    Fits a 1 Liter SmartWater Bottle

    Posted by Zacc on 15th Jan 2021

    Fits a 1 Liter SmartWater bottle very nicely, so I'm happy. One thing I always have anxiety about is losing a bottle cap, so this is a good fix.