Description Product description: Size:2.0 l: 390 x 180 mm Color blue Material: PE + EVA Package contents: 1 piece outdoor sports water bag Large opening on top The wide opening is big enough for your hand to clean the hydration bladder, simply fill it with water and add ice cubes. Safety promise 100% BPA free, the hydration bladder meets all relevant safety standards. Environmentally friendly PEVA material can be recycled. Compatible with most hydration packs. Leak-proof design Soft mouthpiece with easily accessible on / off valve prevents leakage. Conveniently control the flow of water by biting, if not biting, the water will not leak. Double sealing technology makes the water tank more durable. Higher capacity This bubble bag is 1.5 liters. Its the best choice for outdoors, drinking enough for a day of hiking, biking, climbing, running, or biking.