Box size - the inner size of the insulated shipping box with liner is 26 (length) x 11 (wide) x 19 (height) inches, outer size is 26.625 x 11.625 x 20 inches after being sealed by tape, the capacity is 23.5 gallons. Superior insulation – our cold shipping boxes with perfect matched aluminum foil foam liners are made of high quality leakproof insulated materials, to retard all forms heat transfer, which helps to keep your perishable hot or cold food in good condition. Great for – shipping moving perishable frozen food, cake, meat, fish, fruit preservation, or any other cold storage. High economical – the insulated shipping boxes and liners are packed and shipped in flat, more space saving compared to traditional styrofoam cooler, and light-weight in only 30.4 ounces per box & bag, makes it perfect for your cold frozen perishable shipping. You can get - 4 pack of white insulated shipping boxes, 4 pack of leakproof bag liners, and the printed perishable logo on 5 sides of the white insulated boxes, no need extra labeling. Box size - the inner size of the insulated shipping box with liner is 26 (length) x 11 (wide) x 19 (height) inches, outer size is 26.625 x 11.625 x 20 inches after being sealed by tape, the capacity is 23.5 gallons.Superior insulation – our cold shipping boxes with perfect matched aluminum foil foam liners are made of high quality leakproof insulated materials, to retard all forms heat transfer, which helps to keep your perishable hot or cold food in good condition.Great for – shipping moving perishable frozen food, cake, meat, fish, fruit preservation, or any other cold storage.High economical – the insulated shipping boxes and liners are packed and shipped in flat, more space saving compared to traditional styrofoam cooler, and light-weight in only 30.4 ounces per box & bag, makes it perfect for your cold frozen perishable shipping.You can get - 4 pack of white insulated shipping boxes, 4 pack of leakproof bag liners, and the printed perishable logo on 5 sides of the white insulated boxes, no need extra labeling.