100% Poyester<br>DIY FIT: High-quality 100%Polyester 4-way stretch construction tech quick dry material through special technical process long processing to make sure no wrinkle anti-shrink antistatic silk touch ultra-light breathable and extremely moisture-wicking quickly to help keep you stay cool feeling on the outdoors golf course when it heats up in humid hot summer<br>LIGHTWEIGHT: Ultra-light high stretch soft smooth feels great cool against the skin as silk material weighs about 4 ounces.<br>ATHLETIC FIT: Performance vented stretch side slit hem enhances your range of motion in summer outdoor sports. Classic golf roll-resistant rib-knit button-down placket stand collar and cuff<br>SPORTS FITNESS CASUAL: These are great for casual or active wear, so you can wear them for the golf course, yard work, biking, gym, walking, hiking, tennis, baseball, volleyball playing.