Shop Signal Mountain Sports Zone › Uniform Tee Shirt Youth Long Sleeve Performance Image 1 of 1 Uniform Tee Shirt Youth Long Sleeve Performance $15.00 100% polyester, moisture wicking and UV 40+ protection. Skillern logo on left chest. Size: Select Size Youth XSmall Youth Small Youth Medium Youth Large Youth XL Color: Select Color Charcoal Quantity: Add To Cart Added! 100% polyester, moisture wicking and UV 40+ protection. Skillern logo on left chest.