Features1Made from tear resistant and waterproof nylon fabric for extreme light weight and durability. 2Front elastic pocket and zipper bag on the shoulder strap keeps your necessities like cellphone, energy gel handy. (cellphone\u003c6.6\u0027\u0027). 3Mesh shoulder straps for maximum breathability and comfort. 4Reflective strips enhances visibility and safety. 5Hydration insulation layer and pipe outlet make drinking more convenient. 6140 g / 4.9 oz only. 7 choice for running, Cycle, mountaineering, hiking, fishing, cross-country and other outdoor activities.SpecificationThis waterproof Cycle backpack with hydration insulation layer is specially designed for bicycle lovers and walkers. It weights only 4.9oz (140g) which make it a good companion for your fantastic outdoor experience. Nice bag for running, Cycle, hiking, fishing, etc. Features:Made from tear resistant and waterproof nylon fabric for extreme light weight and durability. Front elastic pocket and zipper bag on the shoulder strap keeps your necessities like cellphone, energy gel handy. (cellphone