The S-Lab 4in Short integrates with the Salomon Modular system that allows you to use your own combination of components to fit your performance objectives. This particular short is made to be worn over an inner short or boxer and sits low on your hips. It's constructed with a super lightweight fabric that has micro holes for optimal breathability when you're racing in hot weather. This fabric stretches and moves with you while the DWR treatment sheds light moisture you may encounter during your run.