This is a mock neck shirt from Brooks Brothers. The size is L, with a length of about 68cm and a width of about 56cm. It is 100% polyester. The color is a vibrant blue. I bought it new intending to play golf, but I never had the chance, so it's like new. In addition to this item, I also have other items for sale, including Arc'teryx, Polo Ralph Lauren, Converse, New Balance, Mizuno, Brandear, Helly Hansen, Harley-Davidson, Champion, Ocean Pacific, Adidas, Marmot, Whole Earth, The North Face, Eddie Bauer, FILA, Brooks Brothers, Coleman, and LEE. Thank you.