Lightweight and Breathable for Long Runs and Sunny Days The Sun Runner Cap is a lightweight and breathable hat that's perfect for any sunny day activity, whether out on a run or enjoying a day at the lake. The 2.75" wide brim protects from the sun, while the external breathable mesh panels and internal UPF 40 fabric deliver a cool and comfortable feel while protecting from the sun. The convertible design features a removable cape to protect the back of the neck, while the dark material under the brim reduces glare. The chin cord keeps the cap in place on windy days spent on trail, and the TransAction™ headband wicks moisture away from head and face. Built for sun protection on long days out on the trail, the Sun Runner Cap completes a well-equipped outdoor gear kit.