EUC, only worn a few times. Navy blue, size small. Says Central Park Track Club on the front. No signs of wear, pilling, etc (no "flaws"). Description from the Tracksmith website: An ultra-lightweight micro-mesh long sleeve, made from a silky soft fabric with high-speed stretch An easy, breathable style to take on your sweatiest sessions Featuring reinforced double stitching for durability Fast & Featherlight: made from a luxe Italian fabric, this long sleeve is soft enough to wear on its own, yet light enough to layer, and breathable as can be without letting in the chill. It's also moisture-wicking, high-stretch, and finished with an odor-resistant Polygiene® treatment.