(20-day return and exchange) ARC'TERYX Men's Lightweight Seamless Polo T-shirt with Cool and Breathable Sports Short Sleeves.A perfect combination of casual business and outdoor style! A must-have for summer sports and outdoor leisure! A youthful and vibrant style! Custom-made by the original manufacturer! Regular fit! Tailored for comfortable wear in various sports occasions! .Fabric: High-stretch nylon material! Lightweight and breathable, keeping your skin away from stuffiness! Long, thin fibers provide a cool and breathable feel, ensuring continuous cooling! Stylish yet sophisticated.Great details: Seamless bonding technology! Available in five colors, with intricate details and fine craftsmanship, exuding elegance and style! Simple and stylish with excellent functionality and practicality.Colors: White, Gray Green, Khaki, Dark Blue, Black .Sizes: L-5XL (for details, see image 9)