This is an inner shirt from Under Armour's particularly warm series. It's a very stretchy, thick inner layer. I bought it for skiing and snowboarding, and used it about 5 or 6 times a year for a couple of years, but I'm selling it now that I've stopped. - Model Number: MCM1303 - Silhouette: Compression - Brand: Under Armour - Color: Black - Material: Stretch material - Design: With logo - Type: Underwear Please note that this is not new. If you have any questions, please comment. * It was folded for storage, so there are wrinkles overall, but they should disappear once you start wearing it. Thank you for looking.