ACLIMA LightWool Singlet 100% MERINO WOOL 17.5µ 140g/m² Weight: 95g This is the thinnest and lightest singlet in the ACLIMA underwear line. It uses 100% merino wool ultrafine fibers of 17.5 microns and features a single jersey knit construction with a weight of 150g/m². It is not widely known that wool underwear has the function of keeping the body cool even in the hot summer. It is ideal for summer activities such as running, trekking, and camping, but it is also an all-layer item that is useful for everyday life throughout the year. 【Regular Fit】 Size: 2XL Color: Black I purchased this but have not used it and have kept it in storage. I am selling it because I have no plans to use it. This size is almost impossible to find in Japan. It is also listed on other sites, so it may be sold out.