Soft knit anti-pick, anti-pill fabric has a clean, snag-free finish. Material wicks sweat & dries really fast. 4-way stretch construction moves better in every direction. Anti-odor technology prevents the growth of odor-causing microbes. Ribbed collar for added stretch & comfort. Built-in thumbholes help keep sleeves in place. Generous ½ zip front makes for easy layering. Shaped hem; Reflective details for low-light runs; Garment should be washed & dried zipped up; Wash garment inside out; Machine wash cold with like colors; Use only non-chlorine bleach when needed; Tumble dry low; Do not iron; Do not use softeners; Do not dry clean