Take your hydration game up a notch with our Battle in the Bay Hydro Flasks! They’ll keep your drinks colder, hotter, and longer than ever (talk about a triple threat)! Make sure you have the winning edge - no matter the battle!
How to measure chest width:
Measure under the arm and around the fullest part of the chest with arms down, keeping tape horizontal.
Youth Sizes:
- Small: 100 – 120mm
- Medium: 140 – 160mm
- Large: 180 – 200mm
Adult Sizes:
- Small: 340 – 360mm
- Medium: 380 – 400mm
- Large: 420 – 440mm