New Balance Reflective Accelerate Jacket Men's Stay seen when you're on the move in the New Balance Reflective Accelerate Jacket! Lightweight and fast-drying, this running jacket wicks moisture away from your body to help you work out with ease. NB WINDdefy and ND WATERdefy combine to protect you from the elements. Finish it off with reflective details for low-light visibility, and nothing holds you back from hitting your goals! NB WINDdefy helps retain heat while providing wind resistance NB WATERdefy keeps you safe and dry Athletic fit contours to the chest, waist & hip for active movement Reflective elements add visibility in low light conditions Sizing Small: 35-38" chest Medium: 38-41" chest Large: 41-44" chest X-Large: 44-48" chest *Measurements refer to body size, not garment size.