“AstroAI 24 Can/15L Lunch Box Cooler BagInstructions: 1. Take the cooler bag out of the package; 2. Unfold the cooler bag fully . zip it after filling with items for better sealing performance; 3. Choose the handle or shoulder strap according to your own needs for carryingIncluding??Insulated bag and bottle openerTips: 1. Please do not fold roughly in case of damage; 2. You can both wash and wipe to clean the lining . we suggest wiping the exterior by towel; 3. Hard to fade . wash softly with water . dry it by hanging; 4. In order to avoid smells . please clean the lining after using the bag.