Product description 210D StormArmor Nylon Ripstop weave withstands 200+ lb tensile force Minimize Internal Shifting The main pocket has a hook to hang the water bladder, keep stablility. Reflective Patch Enhances visibility at night or in low - light conditions, improving safety. Convenient Storage The small storage pocket holds phones for quick access; the elastic cord secures towels externally to keep them dry. Toxic-Free Hydration Food-grade TPU eliminates chemical odor Leakproof & Keep Coldness O-ring lock withstands 15psi pressure + ice-cap compatibility for 5hr cooling Recommendations for Other Similar Products of Unigear Hydration Pack 2L Bladder Tactical Hydration Pack Tactical Hydration Pack Hydration Bladder Customer Reviews 4.5 out of 5 stars 6,228 4.5 out of 5 stars 2,099 4.5 out of 5 stars 2,099 4.4 out of 5 stars 3,161 Price $26.99 $ 26 . 99 Bladder Size 2L Blue TPU Bladder 3L Tactical TPU Bladder 3L Tactical TPU Bladder 1.5L, 2L, 2.5L, 3L Material 210D Ripstop Nylon 1050D Ripstop Polyester 1050D Ripstop Polyester Food-grade TPU material Pack Capacity 8L 14L 14L — Back Panel Padded Mesh Foam Pad Foam Pad — Feature Lightweight and Convenient Keep Liquid Cool up to 4 Hours Keep Liquid Cool up to 4 Hours — Item Weight 1.6 lbs 3.4 lbs 3.4 lbs 0.46 lbs, 0.77 lbs Color Black, Gray, Blue, Red, Orange Black,Green,Gray, Tan Black,Green,Gray, Tan — About this item FIT PERFECTLY: pack size of 16.5 x 8 x 6.0 inch with adjustable shoulder chest waist straps, will fit chest size teenagers/kids with 27 inch up to adults (men and women) with 50 inch . The chest and waist straps make sure the pack does not bounce when you move. LIGHTWEIGHT & SPLASH RESISTANCE & DURABLE: Upgraded lightweight and Splash Resistance nylon with 2 Liter balder (in total 1.1 lb) to reduce your lo