At 60cm long and 30cm wide, the bag will pack down to approx half its size (depending on the tightness of straps and size of dryrobe®).   33L capacity Waterproof up to 10,000mm External leak-proof valve for compression Padded shoulder strap Roll-top closure   The dryrobe® Compression Travel Bag will comfortably pack any size of dryrobe® Advance or Towel dryrobe®. Simply put the changing robe in the bag, rollover and clip the top, twist the valve open, squash all of the air out by kneeling on it, then pull the compression straps tight and twist the valve closed. Please note that the dryrobe® Compression Travel Bag is not submersible. dryrobe Compression Travel Bag - Blue