AfterPay Available - The On Running Shorts are formulated using four-way stretch polyamide, and elastane blend to deliver an ultra-lightweight, flexible run. The technical fabric combination will ensure you are supported during warm weather activities, or high intense workouts. The snug inner tight is breathable, and will hold it's place when on the move. Combined with the fast-drying outer shell made from soft, flexible materials to deliver high breathability when things heat up.