Utopia Wear Premium Cotton Interlock Mock Turtleneck Men T-Shirt Cotton blend interlock mock turtleneck is customer favorite as it is designed for soft comfort, perfect fit, exemplary ski wear which is long lasting, year after year; it comes with premium 10.5 oz; interlock knitted fabric and is tailored fit 55% cotton/45% polyester cotton blend interlock mock turtleneck offers optimal softness and durability; comes in variety of shades: black, navy blue, white, steel grey and light grey giving customers a varied choice of colors Special pre-shrunk fabric comes in standard U.S. sizes; fits perfectly around the neck: not too loose, not too tight; extra soft and breathable fabric is perfect for cold weather layering Machine wash and dry; soft, substantial fabric keeps its size, shape and color with every wash