ZIPPERS COOLER. Thermal backpack 7 L - Thermal bag in 300D and 840D jacquard with a waterproof PEVA interior for easy cleaning. Features 2 main compartments, 1 front zipped pocket and 1 side mesh pocket. It has a double main zippered pocket, an adjustable webbing strap and a padded hand grip. The bag has a capacity of up to 7 L - Thermal bag made of 300D and 840D jacquard with a waterproof PEVA interior for easy cleaning. Features 2 main compartments, 1 front zipped pocket and 1 side mesh pocket. It has a double main zippered pocket, an adjustable webbing strap and a padded hand grip. The bag has a capacity of up to 7 L. 270 x 240 x 150 mm