12L, 20L Cycling Backpack

KEEP WATER COLD: KUYOU Hydration pack have thick insulated layer ,the insulated bladder compartment keeps your liquid cool or hot for up to 4 hours. COMPACT& LIGHTWEIGHT : This Hydration packs are designed specifically for road cycling /running/ Hiking ,So that's Compact and low-profile so they feel light and stable on your back and won’t create a ton of wind resistance ,keep your body functioning at peak performance whether you're training for a marathon or cycling COMFORTABLE & RELIABLE: Ergonomically fits for your shoulders, chest, and waist,3 straps are all adjustable for reducing bounce,You'll never lose our balance because of the water load,Soft air mesh back speeds up air-flow and makes your back cool. Foam padded shoulder straps are extremely comfortable VERSATILITY & 100% Satisfaction After-sales Service: The hydration pack is your perfect choice for cycling, camping, running,music festival, rave , kayaking. A decent Holiday Gift for families and friends who love