Flexfit 6533 Ultrafibre & Airmesh Fitted Cap, Grey - Small/Medium Flexfits Ultrafibre Blend Uses Synthetic Fibers For Versatility. The Fibers are Resilient to Wind/Water, and Have a Natural Shine to Emnanate Strength. Ultra Breathable with Airmesh Sides and Back and a Moisture Absorbant Sweatband Engineered to Keep You Cool. 6 Panels, 3 1/2" Crown, and a Matching Color Undervisor With 8 Rows of Stitching For Added Durability. A Mid-Profile Cap with 6 Eyelets To Provide a Little Breathing Room. Signature Synthetic Fibers are used in Flexfits Permacurve PE Visor, which Helps the Hat Maintain its On-The-Field Contours. A Fused Hard Buckrum Sewn Into the Front of the Crown Provides Excellent Structure and Helps Maintain the Original Flexfit Shape.