Keep your head cool and protected with our UPF 50+ mesh ventilation. Don't shake off a great pair of shades. Lock your sunglasses in place with these clever, integrated sleeves and never lose another pair. Stash an extra few dollars or a fishing licence for safe keeping in this handy hidden pocket. Pick your size, then fine-tune the fit with our internal size adjuster. It's hard to beat the enjoyment of a day in the sun, unless it's a day spent in the shady pleasantness of a UPF 50+ hat. A rating of UPF 50+ is the highest sun protective rating achievable and means only 1/50th or less of UV rays are able to pass through, allowing you to diminish the sun, not the fun!