The Under Armour UA Seamless Short Sleeve will help you push your workouts further, using levels of mesh mapped to your bodytocreate ventilation where you need it,along with the comfort of having fewer seams. It's pretty much the most comfortable thing you'll ever train in.

• Soft knit fabric with engineered mesh ventilation, mapped to the places you need it most
• Nearly sew-free construction to eliminate chafing
• 4-way stretch construction moves better in every direction
• Material wicks sweat & dries really fast
• Composition: 51% Polyester/49% Nylon
• Imported