This is one of three 100% cotton long-sleeved shirts purchased in June for a school camping trip. It's a women's XS, but my child usually wears kids' sizes 140-150. The sleeves were a little long, but folding them up worked fine. After checking the weather forecast, it seemed that long sleeves would only be needed for one day when using fire, so this shirt is still in its unopened, unworn condition. This is recommended for women's XS sizes, as well as for children going on school camping trips. Cotton Girls 140 Girls 150 Outdoor Mountains Sea Sun protection