Zelnff Cycling Hydration Backpack with 2l Water Backpack,BPA free,Biking Daypack ,Water Pack for Running Hiking Riding Camping Cycling Climbing Fits Men & Wome

• KEY IMPROVEMENT: adjustable chest strap design, move up and down, no strangulation when riding. Combined with a waist belt to keep the pack snug and close to your backpack, it won't shake when you are exercising.
• Sufficient capacity: 1 separate water bag compartment, 1 mobile phone compartment, 2 waist pockets. Small volume, large capacity, sports need to pack light.
• Innovative breakthrough: the back cushion adopts the "air flow" design concept, combined with the "ergonomics" principle. Suitable for cycling, running, mountaineering, hiking, camping, skiing and other outdoor sports.
• Eco-friendly water bag: no need to worry about water leakage, thickened 3mm crimped edge, after 80KG pressure test, will not leak. 2L water bag, food-grade materials, BPA-free, no odour, higher than the European standard.
• Eco-friendly water bag: no need to worry about water leakage, thickened 3mm crimped edge, after 80KG pressure test, will not leak. 2L water bag, food-grade materials, BPA-free, no odour, higher than the European standard.

Hydration backapck with 2l hydration bladder