Model [ NK10294216]Nike Flex Phenom 2-in-1 Men's 5" Running Shorts Black/VoltSupport Plus VentilationThe Nike Flex Phenom 2-in-1 Men's 5" Running Shorts are made with perforations and sweat-wicking fabric for breathable comfort. Stretchy boxer briefs are built into the waist for added support and range of motion. BenefitsDri-FIT fabric helps keep you dry and comfortable. Perforations increase airflow. Built-in shorts with mesh panels deliver breathable support. Elastic waistband with internal drawcord for a snug, comfortable fit. Vented hem for full range of motion. Back zip pocket Product DetailsReflective elements for visibility in low light. 5" inseam based on size medium. Fabric: Body: Dri-FIT 100% polyester. Front liner: Dri-FIT 100% recycled polyester. Back liner: Dri-FIT 80% recycled polyester/20% spandex. Side liner: Dri-FIT 96% polyester/4% spandex. Machine wash.