penn state nittany lions zephyr tatter adjustable hat m.m. impex, inc. adjustable hat by zephyr. the tatter hat features a cotton bill and front panels, with extremely soft mesh side and back polyester panels for a relaxed and comfortable fit. the front features an embroidered team logo with tan "tatter" edging which gives this hat a vintage and worn look. snap back adjustable strap. 35% cotton, 65% polyester.