🧿Polyester lining 🧿Zipper closure 🧿Hand Wash Only 🧿🏵️High-quality material: Made of high-quality high-density and durable polyester composite fabric, it has the characteristics of good wrinkle resistance, firmness, wear resistance, durability, breathability, etc., comfortable and convenient, very suitable for young people's leisure matching, outdoor activities, etc.😊 🧿🏵️Large-capacity space design: 15.3 x 3.5 x 7.5 inch.a zippered main pocket on the inside, a patch pocket on the inside, elastic closure; an open pocket on the outside, a zipper pocket on the outermost side, and a patch pocket on each side. You can place many items such as keys, wallets, headphones, umbrellas, books, water bottles, clothing and more👍 🧿🏵️Adjustable Straps: The straps are lightweight and reduce the stress on your shoulders. The breathable, thickened padded back panel and shoulder straps make it very comfortable and lightweight to carry, without heat buildup. And the adjustable shoulder straps make this backpack suitable for most people👍 🧿🏵️Changeable shoulder strap orientation: There are two ear buckles at the bottom of the chest bag. You can choose left shoulder or right shoulder according to your habit😊 🧿🏵️Washing Instructions: Hand wash recommended💦, no ironing❗, no bleach❗