Black and gray wetsuit with back zipper, Billabong The Solution model, size ML. - Brand: Billabong - Model Name: The Solution - Size: ML - Color: Black/Gray - Features: Back zipper Although it is an older model, it has only been used about 10 times and has been stored in a cool, dark place, so it is in very clean condition. The fabric is still soft. I wore it at 173cm and 64kg.