Champions' crowns never go out of style, and the New Era Diamondbacks 9FORTY MC A-Frame Cord Cap proves it with every wear. Crafted with a cotton-polyester blend, this cap offers lightweight comfort and breathability, whether you're in the stands or stepping up to the plate. Keep your loyalty stitched in and your style locked down with the New Era Diamondbacks 9FORTY MC A-Frame Cord Cap.