cooler bag with non-woven fabric and sponge inside is very light and convenient to carry.It is widely used for lunch bag. ... environment protectivematerial:80g non-woven,sponge with aluminum film insideprinting: offset print , ... of bags , for instance,non-woven bag,pp woven bag,gift bag,shopping bag,drawstring bag,cooler bag,travel bag,handbag and so on. For more ...