Thank you for visiting. Please check the following information. [Product Information] This is a set of Uniqlo's Airism and Heattech innerwear. I purchased both at the store before, but I haven't had a chance to wear them, so I'm putting them up for sale. The size is M. All items are brand new and unused. I have other items for sale as well, so please take a look if you'd like. We look forward to your purchase.