• 4 way stretch construction moves better in every direction.
• Lightweight, sweat wicking fabric to help keep you comfortable and moving freely.
• Sleeveless design helps move your arms freely and work out comfortably.great for workout,running,gym or home fitness.
• High tech and stretchy fabric make this shirt well ventilated and give your skin the room to breath.
• For your reference, model is 6'1" with 38 chest and wears a medium size.