Hot day? Race day? This piece will catch your pace. Your Men's Brooks Atmosphere Singlet 3.0 is ultra-light, fast-drying, and smooth as can be. GO2™ fabric pulls sweat away in a flash, while the UPF 40+ shield protects your skin when the sun won't quit. Bonus: it resists odor so you can stay fresh long after the finish line. Throw it on and let your arms do the talking.