evo.com | Arc'teryx Activewear Tees > A 50+ UPF sun shirt designed for multi-day treks that looks great, too? Yes please! The Arc'teryx Olia Short-Sleeve Shirt combines a breathable, technical fabric that protects you from the sun with some classy touches that won't look out of place in town after a long day (or week!) of adventure. Regular Fit This classic fit is cut comfortably throughout the chest, waist, hip, and thigh. It allows freedom of movement, provides shape, and layers comfortably over or under layers. 77g/m^2 20D Recycled Nylon Stretch Plain Weave Snap Cuff Closures Bonded Collar for Extra Sun Protection Gusseted Underarms for Mobility and Comfort | Women's Arc'teryx Olia Short-Sleeve Shirt 2026 - X-Small Gray | Nylon