NEW! Duke University Blue Devils Adjustable Buckle Back Hat Embroidered Camo Cap NEW! Duke University Blue Devils Adjustable Buckle Back Hat Embroidered Camo Cap Authentic NCAA Headwear - NCAA Signatures Headwear Beautifully crafted with a cotton blends and with double needle stitching by NCAA Signatures Adjustable buckle back cap. One Size Fits Most. Officially Licensed Product.