... outside and waterproof inside.Insulated interior to keep beverages coolMain productsBackpack Bags,Laptop Bags,School Bags,Cosmetic Bags,Lady Handbags,Cooler Bags,Travel Bags And Etc,Non woven ... a professional OEM manufacturer of bags , including backpack bags,laptop bgs,shopping bags,school bags,cosmetic bags,lady handbags,cooler bags,travel bags and etc. Advantages:1) Competitive ...