Hot Chillys Men's Merino Wool Hooded Base Layer Top 64% polyester/28% wool/8% elastic Made in the USA or Imported Utility pocket on left chest and watch viewing slit on left sleeve Merino-Polyester Blend provides the best of both worlds Hypo-Allergenic, Non-Scratchy Australian Merino Wool MTF4000 synthetic stretch fabric placed in strategic, high-pressure zones for added comfort and less itch Midweight, Moisture-Wicking Fabric (Moisture Transfer Fibers)