Features：
●2 TPU 500ml soft flasks with 360 revolving valve (each flask weighs 38g)
●ADF (All-round Dial Fit) adjustment system that features a dial, a lace and fixed lace guides provides quick, all-round and precise adjustment
●BI-FIX system prevents water in soft flasks from sloshing when they are half full
●13 separate compartments give large capacity for mandatory equipment and keep your pack well organized
●Multi-layer Storage System at back (Breathable and stretchy mesh also keeps your items stable)
●3 ways to attach your trekking poles
●Hiddable trekking pole loops avoid being caught by tree branches
●90% highly breathable mesh fabric for optimized ventilation
●Enforcement at force-bearing point and full cotton threads on easy-to-wear places upgrade durability
●Reflective printings for night visibility
●Zip pockets keep your valuables secured
●Soft flask pockets with Silicone oil cloth inside allow easy storing and fetching

Specification：
●Materials: Nylon 66, Lycra, 4-way stretch fabric
●Capacity: 5L 
●Weight: 174g (size M)
●Size: XS/S/M/L/XL
●Dimensions: 39x1x36cm

Recommended Use: Trail running, Road running, Hiking and Marathon