Men's Patchwork Beret Style Duckbill Cap - Now these are some cool cotton caps! Men's Patchwork Beret Style Duckbill Cap. I enjoy performing on stage wearing these colorful caps! Add one or all of these cool caps to your collection. Adjustable side straps. Has a rounded, low crown and a short stiff brim, these hats have been around for nearly 700 years. Size: 56-60cm (22"-23.5"). Delivery: 14-24 days.