Fit: loose : Gradually reflective details for increased visibilityHem with side vents4-way stretch fabric that moves better in all directionsDurable Airvent fabric at the lower back for optimal ventilationThe material wicks sweat and dries very quicklySoft and breathable knitted fabric is incredibly lightweight and comfortable even on the hottest days on the trailsWelded neckline, lower hem, and armholes for distraction-free comfort and a clean finishUA Explor Ultra Lightweight Women's Short Sleeve