ClimateRight by Cuddl Duds Long Sleeve Crew with Thumbholes Base Layer (Grid Warmth) Textured grid fabric provides breathability and moisture-wicking to help you stay warm, dry and comfortable. . Size: Medium Color: Black (please see pictures) * Tagless back neck label for comfort * Raglan sleeve for greater mobility * Thumbholes for easy layering * Spandex for close-to-the-body fit & freedom of movement * Flatlock seams for chafe-free comfort