About Muc-Off 5 Panel CapRep Muc-Off in style, with the new Five Panel Cap. It's made from 100% cotton and comes with an adjustable buckle to fit every shape of head! Plus, with an embroidered Muc-Off logo, hide your messy post-ride hair - Helmet off, 5 Panel on. FeaturesFlat peak 5 panel construction Webbing/buckle rear adjusters 100% cotton Embroidered Logo Size: One Size Fits All About Muc-OffBack in 1991 Rex and Marilyn Trimnell got things started with X-Lite UK. After designing and manufacturing the world’s first twin crown bicycle fork, Rex created a perfectly pink spray to clean his kit. To make a long story short, Rex’s cleaner was the best thing since sliced bread, and it wasn’t long before word got out and Muc-Off was born. Fast-forward and Muc-Off is now the go-to brand for top riders and racers from the likes of Team Sky to Atherton Racing creating cleaners, lubes, athlete performance products and more.