Hydraulics Lt 2.5L Reservoir Underwear Thin frames and thinner stainless

Thin frames and thinner stainless steel temples create a lightweight feel and crisp style you can wear every day

The photographs make understanding the text easy

Spring-loaded base automatically adjusts to boat when loading

Thumbholes keep sleeves in place

Hydraulics Lt 2.5L Reservoir Underwear Thin frames and thinner stainlessOsprey's Hydraulics LT 2. 5L Reservoir by Hydrapak is made for light and fast activities where weight and balance are critical. Twin welded chevron baffles stabilize the water and maintain a flat profile. The streamlined design allows for easy loading into internal hydration sleeves. Thoughtful design makes filling, cleaning and most importantly staying hydrated on the trail easier than ever.