Features 1、It features heat preservation and cold preservation. It can keep food fresh. 2、It can be used as work and school lunch bag, picnic bag, milk preservation bag, etc. 3、Dupont paper is completely environmentally‑friendly and dispelling material. After burning completely, only water vapor and carbon dioxide are left. 4、It can be folded at any time, easy to carry and light in weight. It can be waterproof, resistant to tear, and can be cleaned repeatedly. 5、The interior lining is padded with 3mm PE foam for high thermal resistance. Features: It features heat preservation and cold preservation. It can keep food fresh. It can be used as work and school lunch bag, picnic bag, milk preservation bag, etc. Dupont paper is completely environmentally-friendly and dispelling material. After burning completely, only water vapor and carbon dioxide are left. It can be folded at any time, easy to carry and light in weight. It can be waterproof, resistant to tear, and can be cleaned repeatedly. The interior lining is padded with 3mm PE foam for high thermal resistance. Specification: Material: Dupont Paper Size: Approx. 31 * 30cm / 12.2 * 11.81inch Weight: 36g Type: Lunch Bags Package List: 1 * Lunch Bag Package List