Hydraulics 3L Reservoir Footwear/Women/Winter Opens quickly and easily with

Opens quickly and easily with Kershaw's assisted opening and a flipper

Constructed with UV 50+ protection built into the fabric and a high  protective collar

Grip:   Pro Trapered Grip

Double-edged dagger blade

Frequency  band: (T 5 is only compatible with the Astro® 320

Hydraulics 3L Reservoir Footwear/Women/Winter Opens quickly and easily withOspreys Hydraulics 3L Reservoir by Hydrapak is ideal for large volume packs and long duration activities. The HydroStatic backerplate provides structure for easy loading into a full pack and maintains a flat profile. Thoughtful design makes filling, cleaning and most importantly staying hydrated on the trail easier than ever. All parts are BPA free, phthalate free, lead free, guaranteed. All materials are certified food safe according to FDA and EU