Stretch, No Wrinkle, Comfort Flex Collar66% Cotton\, 30% Polyester\, 4% ElastanePoplinStretchClassic fitButton-down collarLong sleevesMACHINE WASH COLD, DO NOT BLEACH, TUMBLE DRY MEDIUM, WARM IRON IF NEEDED, DRY CLEANING POSSIBLE, wash and dry inside out with like colors, liquid detergent is recommendedOnline only. Not eligible to return/exchange/pick up in stores