FELLOW Thermal Inner Long Sleeve Men's XL Size 0.5mm Fleece-Lined Heat Max Used only a few times for short periods. I wore it under a 3mm wetsuit in Chiba and Hokkaido in December, and it was quite warm, to the point where it wasn't a problem even without a semi-dry suit. I bought it thinking of using it as a drysuit inner, but I'm selling it because I'm using a different inner. Manufacturer's suggested retail price: 14,300 yen *Although it has only been used for a short time, it is not new. Please refrain from purchasing if you are concerned. *There were creases from the time of purchase, and photos of the noticeable areas are provided. The creases may become less noticeable with use, but please refrain from purchasing if you are concerned. Also, it will be folded and packed in a Takkyubin Compact box for shipping, so creases may occur during that process. Please be aware of this. Type...Wear Details...Innerwear Gender...Men's Size...XL