SOFT ICE GEL PACK HEAVY DUTY SERIES:”MC”, is specially designed and produced for heavy usage user where they will reuse the ice gel pack repeatedly. This is the most durable ice pack, gel pack, cool pack, & cold pack in the market. Best quality ice pack, gel pack, cool pack, & cold pack in the market for its outer packaging which is made of 3 different layers of raw materials, and also the finest raw materials used!