A large and roomy bag, plenty of space for storage. Internal capacity of 4. 75 cu ft (135 liters). The bag is long enough to hold even the long free diving fins. It is made from a strong radio frequency (rf) welded seam pvc and is waterproof. Equipment can be washed with water while still inside the bag. Once you have finished washing your gear the bag has a special draining cap situated at one end to let water out easily and conveniently. Comes with handy top grab carry handles and two straps that can also be used as shoulder straps. No water comes out when transported, even by car.