Lunch Boxes & Totes [Specification][Color]:Gray,Black,Colorful[Material]:Pearl cotton + woven cloth aluminum film[Size]:29 x 17 x 23 cm(11.4 x 6.7 x 9.1 inch)[Features]- 1.Large Capacity design lock temperature at all times.- 2.Selected 600D Oxford cloth outer layer, thick and wear-resistant, good cleaning and not easy to deform- 3.5mm Pearl cotton has strong toughness, and anti-collision is a high-quality thermal insulation and waterproof material.- 4.Nylon cloth lining can prevent Pearl cotton and aluminum foil from rubbing each other to achieve the effect of protecting and keeping warm.- 5.Aluminum foil insulation inner layer, waterproof easy-to-clean, can block the temperature to transfer outward to achieve the insulation effect.[Package Included]:1pcs xPortable lunch box bag[Note]- 1.Due to different producing batches, product details might be a little different. If you minding the difference, please buy it carefully.- 2.Please allow 1-3CM differs due to manual measurement.- 3.Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding.Keep warn for about 6 hoursKeep cold for about 24 hours01 Cold insulation function:Constant temperature and cold drink, enjoy super large air conditioner in summer, have powerful cold preservation function, long cold preservation time, can put ice bags to help better effect.02 Insulation:Long-lasting temperature locking system ensures food temperature and is convenient to eat.03 Preservation function:Fresh Meat, vegetables, cold drinks you want to drink, ice fruits you want to eat when you go out for barbecue in summer.01 high quality hardware zipper design02 Solid Portable Design:Solid, firm, thick, portable and easy to carryMaterial Parsing01 600D Oxford cloth durable high density02 5mm Pearl cotton thick super insulation03 Nylon lining,smooth anti-friction04 Reinforced Aluminum foil insulation easy-to-clean