Purchased in Europe. It's probably a Japanese size 160, or roughly SS to Sss. Made of chlorine-resistant swimwear material, so it should last a long time. I will need some time to reply to comments during the day due to work. I will gradually be decluttering some pool-related items from my student days. I tend to buy a lot of underwear because I like it, so I often sell items without using them, sometimes even cutting the tags off. I might be selling something because I already have the same item at home. Thank you for your understanding. Shipping will take a few days due to work. Please be patient. #Fundoshi #Fundoshi #Competitive Swimwear (Kyō-pan) #Boomerang #charlie #Men's T-backs #Men's Bikinis #egde #tmcollection #bvd #unico #goodmenwear #thong #bodywear #GX3 #Competitive Swimwear