Our Men s Mock Zip Top with 50+ Upf makes sun protection easy. Its lightweight, breathable fabric ensures comfort during outdoor activities like tennis, running, hiking, or sports. With a sleek, modern design and a fit that allows for full range of motion, this mock zip is perfect for both performance and casual wear. Stay cool, dry, and protected in style with the Mock Zip Top. Crafted with BloqTek fabrics that are recommended by The Skin Cancer Foundation.