The Half Zip comes in two performance fabrics. SolarKnit™ (Beige) — our UPF150+ breathable, quick-dry nylon knit built for all-day sun protection. ArmorKnit™ (Black, Maroon) — our UPF100+ antibacterial, quick-dry nylon knit built for high-intensity sessions. Both deliver full breathability and moisture-wicking performance. A quarter-zip h...