Athletic Works Adult Compression Short Sleeve Crewneck Shirts are made from 85% recycled polyester and 15% spandex.  They feature a contrast cover stitch, 4-way stretch for ease of movement, moisture wicking to keep you cool and dry and are tagless to avoid irritation.  These Athletic Works Adult Compression Crewneck Shirts are available in Black or White, sizes Small – Xlarge and are machine washable.