A wool blend front with a nylon mesh back give this classic-looking cap some modern style. Style SNAPBACK / FLAT BILL|MESH BACK Shape HiPro Fabric Acrylic-Acrylic-Wool Blend/Polyester Mesh Visor Flat Sweatband Cotton Fit and Size Adjustable Snapback One Size Fits Most.  Color is correct in the first picture.

BRISK3T Flat Bill Trucker Cap