• Backpack bladder bag-- designed with 12l large capacity and double-zipper closure, ideal for safely storing hydration water bag, wallet, , cellphone and other belongings while bike cycling, hiking, camping, mountaineering and doing other outdoor sports.
• Water bag backpack-- each shoulder belt with a water hole for water bag, very convenient for cycling.
• Men backpack-- size (height*width*thickness): about 42*23*17cm. capacity: about 12l .
• Excersize bike-- adjustable shoulder straps design make the backpack suitable for different persons to use.
• Running backpack-- come with a 2pcs side net pockets to store water bottle or other drink can, and a rain cover front pocket for use .