Take your full swing feeling free as expanded arm holes and lightweight fabric offer the ultimate range of motion. Ultra-smooth on the inside, this sweat-wicking fabric helps you stay dry and comfortable from tee box 1 to hole 18. Nike Dri-FIT technology moves sweat away from your skin for quicker evaporation, helping you stay dry and comfortable. Side slits help reduce bunching during side-to-side movements. 4 traditional buttons on chest let you adjust your airflow and style.