- Pro-Style Wool Blend (80% Acrylic / 20% Wool) Adjustable Heather Gray Cap with Black 3D Puff embroidering technique applied. 6-panel Flat visor cap with fused buckram sewn into the crown. 3.75" crown, 6 sewn eyelets, 8 rows of stitching on visor, with black under-visor. Adjustable strap. One Size Fits All.