Mopaclle Tactical Hydration Pack Backpack with 2.5L BPA Free Water Bladder for Cycling ,Climbing Hiking, Running, Walking PACKAGE INCLUDES: Hydration Pack with 2.5L BPA free Hydration Water Bladder , It also keeps the water fairly cool. And include a wide screw cap so you can add ice cubes for an even cooler drink. Enough to get you through a day of hiking, cycling, running ,Taking with you for the day. HYDRATION PACK MADE FROM 1000D CORDURA FABIRC Fabric heavy-duty construction with PVC lining, resistant to tears and abrasion; Hands-free hydration hose with bite valve, gently biting the valve opens up the flow of water ADJUSTABLE SHOULDER WITH CHEST STRAPS: Will fit chest sizes from teenagers/kids with 27" up to adults (men and women) with 50" chest size. The chest straps make sure it doesn't bounce when you move; Whistle buckle for emergency CAPACITY: 19.5" x 9.5" x 1.2" in size and 22 ounces in weight; Two front pockets for carry your wallet, keys, phone, towel, smalltool, perfect for hiking, running, biking, walking . 90 Day No-hassle free Replacement Warranty