The PROTEINHOUSE Flexfit Hat is a 6-Panel Flexfit stretch to fit 100% Polyesther hat with the PROTEINHOUSE name on the front in a heavy 3D stitching across the width of the crown and a 2D embroidery PROTEINHOUSE on the back of the hat. The hat bill also has our signature PH flag sewn on. Inside, the hat PROTEINHOUSE in embroidered into the sweat liner and printed on the hat skeleton. One size available Small/Medium. This hat size really seems to one-size-fits-all.