We specially designed a foldable insulated bag for X700, which is a multi-functional storage bag with both fashion and practicality. It uses waterproof silver cationic polyester cloth material with thick hand feel, thick aluminum foil insulation material for heat preservation and cold protection inside, and PE shockproof material for inner layer, which can better absorb impact. There are wide side pockets on either side of the bag, which can be fitted with shoulder straps. The built-in shoulder strap is made of thick nylon webbing and non-slip pads, and the main bag is protected by a sealed waterproof zipper.