FJ Performance Mid-Layer Vests are versatile pieces that allow the player to adapt to changing weather conditions, while the four-way stretch fabric allows free range of motion throughout the golf swing. - ANTI-MICROBIAL TECHNOLOGY: This anti-microbial finish inhibits odor build-up when ambient moisture is present. - EASY CARE FABRIC: Easy to care for fabric is machine washable with minimal wrinkling or shrinkage. - FOUR-WAY STRETCH: This performance fabric offers extreme comfort and allows complete range of motion during the golf swing. - EXCLUSIVE PRODRY FABRICATION: ProDry Fabric offers extreme comfort while keeping you cool and dry.v DOUBLE STITCHED SEAMS: Double stitched seams offer added durability.