Two polo shirts used for English activities volunteer work, a unisex M and S size set. I hope you can wear them during English classes at elementary school or for volunteer activities. The S size was used more frequently, about 5 times. The M size is almost new, and you can see the difference in the photos of the collar. Measured flat on the back. Please note that there may be some errors. M size: Shoulder width 43cm, body length (measured from the back collar) 68cm, body width (width under the back sleeves) 48.5cm S size: 40cm, 62cm, 47cm respectively.