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The Amphipod RunLite Airstretch 2+ 21oz is the smallest, but perhaps the most useful model in Amphipod's popular belt line. This fully adjustable belt carries 21 ounces of fluid between two bottles that can be positioned anywhere on the belt that's most comfortable for you; a compact zipper pocket fits a few gels, or keys and your phone.


*Try with add-on Jett Caps for high-flow rate that's always open.


  • Black


  • Bottle modules slide to be positioned anywhere on belt
  • AirStretch™ Belt Technology
  • Adjustable velcro closure
  • Breathable ultra-stretch comfort
  • Outer pocket for small items
  • Add additional modules for greater capacity
  • Bottle Content: polyethylene, recycling symbol #4 (BPA-Free)


  • Sizes based on waist measurement in inches
    • Size 1:  23" - 29"
    • Size 2:  30" - 35"
    • Size 3:  35" - 42"

More From Running Double Bottle Waist Packs: Small Bottles

Customer Reviews

Comments: Positionable bottle mounts -- I keep 1 bottle in front, sideways for easy access, and 3 in the back. I switch out the front bottle when it empties. Available small waist belt -- I don't like carrying around excess belt and have them dangle down. Bounce-free -- At first, I thought there was a little bounce, but I quickly forgot all about it. The trick is to wear it around the narrowest part of my waist. I can't get it to stay down at my hips, but it doesn't matter because around the waist works fine for me. Breaths well -- I never had problems with sweat accumulating under the belt. But then, the really hot season hasn't come yet. Excellent Rapid Access Pouch -- Love it. Big enough for my smart phone (if I use the headphone with the 90-degree bend in the plug). Easy put in and take out phone. I can operate the volume buttons on the phone without opening the pouch! This pouch works much better for me than the SmartViews that were designed for smart phones. It was too impractical to operate the phone inside the SmartViews. The loops for the gel packs work fine, but a bit hard to insert.
From: Brian, Pleasanton, CA, USA