I've used this a few times since I bought it, but I'm not using it anymore, so I'd like to sell it to someone who wants to stay warm while diving, kayaking, fishing, etc. There doesn't seem to be any noticeable deterioration, but this is just my personal assessment. Please purchase only if you understand that this is not new. I will fold it up small for shipping. Brand: SHARKSKIN Size: 10 (S) The material is windproof and has zero buoyancy, so you can dive warm without increasing your waist size.