Worn 1x Vineyard Vines Boys Performance Polo Shirt Sport, performance material Fabric · 92% polyester, 8% spandex Features · Lightweight performance fabric with added stretch · UPF 50 sun protection · Durable, quick drying, and moisture wicking Size Small which is equivalent to 8-10 for this brand Excellent condition and never put in dryer See my other boys Vineyard Vines listings. thanks for looking