1x1 rib knit collar. Two button placket. Slant top placket. Taped back neck and inner collar. Taped shoulder seams. Twin-needle hem and open cuff. Side vents. Twin-needle stitched armholes and shoulders. Dropped back hem. Spare button. Kustom Kit wove back neck label.Washing InstructionsWash as synthetics at 30°C. Do not bleach. Low iron. Do not dry clean. Do not tumble dry.