Pepe la Sal continues to make a difference. We present our Isothermal Bag ... a different bag, a bag that keeps your fresh and frozen products for more hours (from 3 to 8 hours). You only have to introduce 1 liter of water, add 250 ml of pharmacy alcohol and mix the gel bag inside. Then we put it to cool in the freezer and after a few minutes, surprising! Your bag will have reached -20 C approximately. Ideal to accompany you to the beach, trips, camping ... being able to use it as many times as you want, you just have to leave it in the freezer for the next time.