Samteam Traveling Products Co.,Ltd is one of the famous 600d backpack with cooler leak proof compartment manufacturers and suppliers in China,Website:://.bag-supplier.com, we are able to offer you fashion, low price and high-quality CE certification 600d backpack with cooler leak proof compartment at any time.600D polyester cloth in yellow and black color combination as exterior material, aluminum foil EPE foam as insulated material, PEVA with drawstring closure as extra interior to supply leak-proof function;Double shoulder strap with 8mm thickness EPE foam pad, adjustable;Bag cover closed to body by Velcro.