adidas Men's Running Primeknit 1/2 Zip Shirt 100% Other Fibers Imported Adidas primeknit wool for intuitive temperature management and odor resistance Zoned knit offers a seamless combination of weather protection, moisture management and breathability Half zip with stand-up collar for Adjustable breathability Ribbed cuffs and hem for a snug feel; thumb holes with cuffs help keep sleeves down; reflective details Regular fit