Thank you for viewing. The item is as follows: Men's Under Armour UA Rush Energy Sleeveless T-shirt. Color: Red Size: M Model Number: 1366139 Fit: Loose Material: 90% Polyester, 10% Polyurethane Season: 23 Fall/Winter Washing Instructions: Machine washable You can search for "UA Rush Energy Sleeveless T-shirt" to see the size, details, and specifications on the official Under Armour website. I've only used it a few times, and in my opinion, it's almost new. The original folds from when it was purchased are still visible. I use the same shirt in other colors, and because it contains 10% polyurethane, it's stretchy. Even if the shirt sticks to you from sweat, you don't feel pulled, so I think it's good for sports where you sweat a lot, like running or hot yoga (personal opinion). I will ship via Nekopos (a Japanese delivery service). Instant purchase without comments is also welcome. I am a non-smoker and do not have any pets. Please be sure to read my profile. Thank you.