The original. The archetype. The industry standard soft brim run cap. Race proven from Boston to Charlevoix, and your local 5k as well. The GOCap - Century edition is built lightweight, reflective, machine washable, packable, topped off with ultra breathable COOLmatic mesh and like all Ciele products, is backed by their million miles guarantee. Details:- lightweight, fast-drying performance-ready COOLmatic fabric and repreve recycled performance fiber.- UPF +40 protection on the brim, front panel and back panel.- machine washable.- pliable SOFTflat brim for easy packability.- reflective detailing for night run visibility.- ciele athletics™ million miles guarantee.- 5 panel fit. 58 cm. adjustable. one size fits most.- weight 62 grams.- designed for people who run.