Polyamide Imported FOLDABLE: This backpack is easy to fold up into its pocket (Not included extra pouch. Just its own inner pocket to pack with. ) Unfold size: 15.5x9x3.5inches. Folded size only 7.5 x 6inches, easily pack it in your suitcase, backpack, or car and simply unfold from your checked bags and use it as a carry-on for your excess baggage to avoid the overweight charge. ENOUGH CAPACITY& LIGHTWEIGHT: One front compartment holds your tissue key or earphone. One main compartment fits your travel essentials: such as clothes and Umbrella. Two side pockets keep your things organized and separated. This lightweight backpack is only 0.56lb, and is easy to carry and use. DURABLE: Made with thickened water-resistant polyamide material and high-quality SBS zipper. Durable and not easy to tear. Don't be afraid of getting wet even if it rains when outdoors hiking. MULTIFUNCTION: This packable backpack is the perfect companion for the outdoors, one-day hiking, biking, traveling, camping, work, and shopping. Fit for men and women. 100% CUSTOMER SATISFACTION GUARANTEED: This small shoulder backpack will be durable with strict craftsmanship. We stand behind the durability of our goods. If there is any quality problem with our product, please feel free to contact us.