Whatever your sport of choice, the KJUS Men's Ethan Midlayer Half-Zip is engineered to keep you moving. With UPF 50+ protection to keep you safe from harmful sun rays, you can stay out all day without hesitation. Stay fresh with antibacterial fabric that fights odors, and enjoy freedom of movement thanks to the ultra-stretch design. Quick-drying properties ensure comfort no matter how intense your activity gets, while the half-zip closure lets you easily adjust ventilation on the go, so you're ready for any weather, any activity, at any time of year.