Long Sleeved: Long sleeve crew neck tee Contrast neck tape and stitching Tag-free brand label for added comfort Look for matching bottoms to create a set Machine washable   Short Sleeved: Short sleeve crew neck tee Front screen print design Tag-free brand label for added comfort Look for matching bottoms to create a set Machine washable Buffalo Plaid are 100% cotton  88% cotton / 12% polyester Others 60% cotton / 40% polyester https://www.hatley.com/en_us/customer-service/size-guide