Pinnacle 4 Liter Hydration Race Vest Size:M The unique adjustable heel rest

The unique adjustable heel rest allows you to customize your stretch by increasing or decreasing the degree of stretch

connecting you to the true barefoot running experience

comfort is never in question

natural contoured arch support for longitudinal medial arch support

Details: double strap with toe loop and individually adjustable metal pin buckles

Pinnacle 4 Liter Hydration Race Vest Size:M The unique adjustable heel restPERFECT FIT Designed to keep you moving in total comfort, this vest is lightweight, breathable and features tapered back panels to keep the moisture out. Its new enhanced shape boasts a slightly longer back for efficient, dispersed capacity. With just the right chafe free fit and form, it's the perfect race day vest! SMART STORAGE Thoughtful storage is always in reach including two new Kangaroo pockets allowing one side entry access point and a