Illinois IHSA Embroidered Short Sleeve Ultra Mesh Football Referee Shirt. The Smitty "Ultra Mesh" material is designed to have the crisp look of polyester, but the cool feel of mesh and poly/cotton. Embroidered with the IHSA Official logo on the left sleeve and option for the IHSA above the pocket. Tailored edge stitched soft byron collar, zip front and matching banded sleeves. Double needle stitched left chest pocket and hem. Extra tuck-in length. Split tail bottom.