adidas Originals Adventure Runners Cap Straight from the archives, the inspiration for this adidas Adventure Runners Cap is clear. While the hat doesnt require clocking miles, it is still about absolute comfort. The mesh sweatband and breathable mesh panels on the sides make that clear. An adjustable bungee on the back lets you find the perfect fit.Made in part with recycled content generated from production waste, e.g. cutting scraps, and post-consumer household waste to avoid the larger environmental impact of producing virgin content. Material Content: recycled polyester 100% One size fits most 100% recycled polyester ripstop Mesh sweatband Flat brim Adjustable bungee back strap Mesh sides Five-panel construction