The Deca 10 Liter Dry Bag features a two-way purge valve used to inflate, compress or drain water from the bag. The 100% Waterproof Marine-grade vinyl material keeps water in or out depending on your needs. Fill the bag with ice to use as a cooler and the integrated bottle opener on the closure to crack open a cold beverage. The uses you will find for the Deca Dry Bag are endless: keep smartphones, electronics, clothing and personal items dry inside, inflate or stuff to use as a pillow, fill with water, hang, open the valve and use it as a shower. The Deca is perfect for any activity or adventure!