18L LARGE CAPACITY: Composed by 2 main front compartments, 2 side zipper pockets on waist belt, 1 mesh pocket on the front. The bottom main pocket can be used for grocery, food, clothes, water bladder and other essentials.
LIGHTWEIGHT AND WATERPROOF FABRIC: Only about 490g. The whole backpack is made of lightweight polyester, anti-scratches, waterproof, durable to use, easy on and off.
PERFECT BACKPACK: Designed for comfort, the hydration pack is ultra-light, streamlined, and easy to adjust. Your essential backpack for outdoor activities, raves, hiking, biking, climbing, running, etc.
3L WATER BLADDER: 3Liter bladder is made from food grade approved materials, BPA free. Leak proof and easily removable via the main pocket. Wide screw cap allows ice to go through for cooler drink & makes cleaning easy, with the Insulation lining can keep the drink cool for longer.
PROFESSIONAL TREKKING BACKPACK: One backpack with multifunction's makes the travel be lighter and safer. Except the common storage functions. Quick release buckle is convenient to wear. The elastic rope on the surface can be used for tucking towels, etc.

PALAY® Backpack for Cycling, Running and MTB Racking with 2L Hydration Bag for Men and Women