M's R1 LITE YULEX FZ L/S Top patagonia Men's R1 Lite Yulex Front Zip Long-Sleeved Top Size M - Brand: patagonia - Size: M - Material: Yulex Rubber 85%, Synthetic Rubber 15% Gender...Men's Thickness...~2mm This is a size M wetsuit made of Yulex material. I purchased it not for surfing, but for winter race SUP training. I wore it with a long john, but it became too hot for high-intensity paddling, so I stopped using it. I think it's perfect for beginners who fall into the water or for SUP touring. I haven't used it for surfing, so there are no wax stains or scratches. Regarding the size, I am 175 cm tall and weigh 70 kg, and I felt it was a little small. I usually wear patagonia clothing in size M or L. Thank you for looking. Thank you.