On Running Men’s Long Sleeve Performance Long-T Training Run Athletic • Sz Medium • heather grey • Running, cool-weather training, breathable, ultralight • It keeps you warm in the cold, and cool when it's hot – this blend of Japanese knit fabrics is pretty incredible • Fast-drying and incredibly lightweight, it works to wick moisture away from your skin, while the antimicrobial treatment in the yarn locks in freshness and keeps odors away • Strategically placed seams reduce irritation in sensitive areas • excellent condition, sold out online