Pilipa'a Rain Custom Fan Athletic Tee92% polyester, 8% spandex (in the US) Fabric weight: 4. 42 oz yd (150 g m), weight may vary by 5% Very soft four way stretch sports mesh fabric Comfortable fit Overlock and coverstitch UPF 50+ protection When you place an order, we produce it specifically for you. This allows us to avoid waste, keep our costs low and contribute to a happier, healthier Lisa. (And of course our planet.)Size guide CHEST (inches) XS 36 S 37 M 39 L 42 XL 45 2XL 48 3XL 52