Package list: 2 x Hydration bladder?Wide Application?- The water bladder is suitable for most hydrating backpacks, and can be used in a variety of occasions: hiking, running, rock climbing, camping, cycling, walking, skiing, etc. It is a must-have for outdoor adventure enthusiasts and a great gift for Christmas/New Year. ?Durable Water Bladder?- This hydration pack can withstand temperatures from -4? to 122?, can resist temperature changes in hot and cold weather, and has good abrasion resistance, tortuosity resistance, tear resistance, and can withstand long-term use. ?Large Opening?- The water bladder has a large opening, which can be easily filled with water and ice cubes, which is convenient for the professional cleaning kit to enter the interior to clean and dry, and promote health. The capacity of the large water bladder is 2 liters/67 ounces. ?Upgrade Leakproof?- Our water reservoir adopts military-grade double sealing technology, has self-locking joints, a large flow bite valve with switch and a dust cover. It has passed the air pressure test and is completely pressure-resistant and leak-proof. ?Food Grade Material?- You will get 2pcs hydration bladders made of high-quality EVA material, non-toxic, tasteless, BPA-free, SGS certified and 100% food grade, which will not leave bad taste in your beverages. It is safe to drink.Capacity: 2 Liters. Sport Type: Cycling. Material: Nylon. Brand: AYQWE. Date First Available: June 21, 2021. Best Sellers Rank: #6,414 in Sports & Outdoors. Customer Reviews: 4.5 out of 5 stars 83 ratings 4.5 out of 5 stars. : B097MV2YMG. Sport Type: ?Cycling. Part Number: ?1. Manufacturer: ?A young store. Material: ?Nylon. Brand Name: ?AYQWE. Package Weight: ?0.39 Kilograms. Item Package Dimensions L x W x H: ?14.68 x 6.77 x 1.89 inches.