- 98% Cotton, 2% Elastane - X -fit Flexfit® - Fabric: Cotton elastane - Brim: Contrast Permacurve brim - Flat DC logo embroidery on front - Small logo embroidery on back - Cap Star Seasonal Flexfit Hat for Men. Same standard Cap Star Flexfit Hat, new seasonal colorways. Made with a durable cotton elastane twill, delivering everyday versatility and solid sun protection via a permacurve brim. Stretchy, like a Flexfit should be, offering an activity-conscious flexible fit.