Tired of losing your towel in front of your pals when changing in the parking lot? Would you like to get the sand off your feet before jumping in the car? The Parka is a heavy grade terry cloth material. The Cinch Sac has a waterproof layer that is designed to keep the water from your wetsuit in the sack so it does not leak into your car. This package will give you the gear you need to get out of your wetsuit and stay warm in the process. Save $25 by buying these together. Yew!