Material: Made of space mesh and nylon, with breathable mesh , durable and wear-resistant Features: The single shoulder insulation bag features exquisite hardware snap closure and a practical two-way zipper Convenient: It adopts a widened shoulder strap, which is easy to handle and has a compartment mesh bag for easy storage Insulation: The inner liner is made of warm coating fabric, which has a good insulation effect Large capacity: The portable single shoulder insulation bag has a large capacity, convenient loading, and strong load-bearing capacity