Cool Trucker Hat with Snap closure. Available in multiple beautiful colors. The Front of the hat is made of 100% Polyester and the MESH BACK is made of 100% Nylon. One size- Fit most adults thanks to the back adjustable plastic. Light-Weight, High-Quality Fabric & Stitching Profile: 5 Panels, High Profile, CONSTRUCTION: Curved Visor, Structured Crown Quality Embroidery Print. Cool Trucker Hat with the embroidery print of Nasa. Snap closure, Available in multiple beautiful colors. The Front of the hat is made of 100% Polyester and the MESH BACK is made of 100% Nylon. One size- Fit most adults thanks to the back adjustable plastic. Light-Weight, High-Quality Fabric & Stitching. Profile: 5 Panels, High Profile, CONSTRUCTION: Curved Visor, Structured Crown. Quality Embroidery Print.