【Material】: This portable pizza backpack is made of 1680D Oxford cloth wih pearl cotton, aluminum film, and includes two partitions and a waterproof zipper for enhanced durability and protection 【Double Shoulder Straps】: Designed with convenience in mind, this delivery bag features double shoulder straps for easy carrying. 【Large Capacity】: With dimensions of 40cm length x 37cm height x 25-40cm width, this thermal insulated food delivery backpack  offers ample space to accommodate multiple food items while maintaining their temperature 【Expandable 】: Insulated food delivery backpack can be expandable for easy storage  【Widely Used 】:Food delivery backpack with reflective strip for carry hot or cold food  takeout delivery, etc Size Chart: Length x Height: 40cmx37cm/15.75inchx14.57inch Width: 25cm-40cm/9.84inch-15.75inch Package Includes: 1  Expandable Pizza Backpack   Note: Please allow slightly errors due to manual measurement and different monitors.