The Nike Mesh Back Hat: Light and ventilated. The Nike Mesh Back Women's Golf Hat is a structured silhouette designed for excellent breathability. Built with lightweight fabric that keeps sweat off the skin, this adjustable hat helps blocks out the sun. Benefits. Dri-FIT fabric to wick away sweat and help keep you dry and comfortable. Six-panel design with interior taping for comfort and durability. Eyelets at each panel and mesh back panels for excellent breathability. VELCRO ® brand fastener strap at back for a snug, adjustable fit. Additional Details. Fabric: Front: Dri-FIT 100% cotton. Sides and back: 100% polyester. Hand wash. Imported