3 Size Options Small:24 x 14 x 17 cm Medium:26 x 17 x 18 cm Large:29 x 20 x 22 cm Durable heat insulation: cool bag is made of three-layer insulation material, the outer layer of the insulating bag is made of Oxford fabric, which is waterproof, dirt-repellent and not easy to scratch. The inner lining is made of high-quality environmental protection film made of aluminium, and filled with pearl cotton for high heat resistance. Lightweight and portable: Meet basic needs of the family. With padded handles and removable/adjustable shoulder straps, you can adjust it to your own situation. The insulated bag has 1 side pocket, you can bring umbrellas, spices, sweets, napkins, keys and other small items. Easy to clean: the inner layer of the cool bag is made of aluminium foil. Wipe it clean after use with a towel or paper towel. No washing machine or brush is required to clean, which prevents damage and extends the life of the insulated bag. Wide range of applications: the cool bag has good thermal insulation properties. You can put some ice cubes in the ice pack and then add grilling material, beer, carbonated drinks and drinking water to maintain the cooling effect for a long time. Very suitable for business trips, outdoor travel, hiking, camping, picnic, beach, fishing and other outdoor activities. Safe and environmentally friendly: the product has no pungent odour, environmental protection and is non-toxic. You can use it with confidence. If we can help you, please contact our customer service. Packing 1 x Lunch Bag