1、Water Bladder is made of food grade material, safe, odorless 2、Backpack is made of quality nylon, waterproof, tough and durable 3、Soft bite mouthpiece, PVC tube and filling cock seal perfectly, no leakage 4、Detachable design for easy cleaning 5、Perfect for outdoor activities like camping, biking, etc Description:      This item is designed for carefree drinking while biking, running, hiking and other outdoor adventures. Made of food grade material, the bladder is odorless and nontoxic, and the tube and bite  mouthpiece is also of great quality, durable and antibacterial for safe drinking. The backpack is well built with thick nylon, tough and durable, straps are wide and adjustable, comfortable to wear. Soft bite mouthpiece, PVC tube and filling cock seal perfectly, enable no leakage, and the tube can be detached for cleaning. The backpack has a open top with a hook and loop, which can protect water bladder from sliding during biking.    Features: 1. Water Bladder is made of food grade material, safe, odorless.     2. Backpack is made of quality nylon, waterproof, tough and durable. 3. Soft bite mouthpiece, PVC tube and filling cock seal perfectly, no leakage. 4. Detachable design for easy cleaning. 5. Perfect for outdoor activities like camping, biking, etc.      Specification: Materials: Tube - PVC; Water Bladder - EVA; Backpack - Nylon Color Options: Black; Green; Khaki; Jungle Camo; Digitale Camo; Green Ruins Water Capacity Options: 2.5L; 3L Backpack Size: 46 * 20cm / 18.11'' * 7.87'' Weight: approx 385g Package Included:  1 * Hydration Bladder (with Tube and Bite Mouthpiece) 1 * Backpack