Brand New Gildan 5000 100% Cotton Tee size S measures 18" pit to pit, 28" in length, and 15.125" sleeve length. size M measures 20" pit to pit, 29" in length, and 16.5" sleeve length. size L measures 22" pit to pit, 30" in length, and 18" sleeve length. size XL measures 24" pit to pit, 31" in length, and 19.5" sleeve length. It fits true to size - Care Instructions: Wash with similar colors Hand wash or gentle cycle in cold water (max 30°C / 90°F) Air dry recommended