Set up for distance. The Nike shorts provide moisture-wicking breathability for the long haul. Splits along the side seams let you move freely, while the unique pocketing system helps keep your essentials close at hand. This product is made with at least 50% recycled polyester fabric. The material comes from plastic bottles that Nike has diverted from landfills since 2010 bringing Nike's total to more than 6 billion Nike Flex fabric stretches with your body. Zoned mesh on the inner brief provides breathable comfort. Perforated front panels enhance ventilation. Wide, knit elastic waistband has an internal drawcord. Zippered back pocket secures your phone. A vapor barrier helps guard items from sweat.