breathability and support. the nike tempo rival older kids' (girls') printed running shorts are designed with mesh panels and built-in briefs for enhanced ventilation and support.. benefits. dri-fit fabric helps keep you dry and comfortable. mesh panels enhance breathability. elastic waist with drawcord for a snug, adjustable fit. built-in briefs for enhanced support. product details. fabric: body: dri-fit 100% polyester. machine wash. imported.