LONGER LENGTH, VENTILATED COMFORT. The Nike Dry Challenger Men's 9" Running Shorts help keep you cool and comfortable with lightweight Dri-FIT fabric and mesh side panels. Benefits Dri-FIT fabric helps keep you dry and comfortable Mesh side panels provide breathability Built-in briefs for support Deep side pockets Stretch waist with interior drawcord Product Details 9" inseam based on size medium Notched hem Fabric: Body: Dri-FIT 100% polyester. Mesh/briefs: Dri-FIT 100% recycled polyester. Machine wash Imported