Genda 2Archer Sports Running Cycling Hiking WaistPack Runners Water Bottle Bag(Size:1266cm) Full Length 126cm, Adjustable Range From 80cm To 102cm. 19cm x 8cm Water Bottle Pocket Fit 24cm x 8cm Water Bottle Materials: Nylon Style: Sport waist pack, water bottle bag Applicable Scope: running, fitness, biking, hiking, mountain climbing(especially suitable for a marathon)