These black 2XU MCS Run compression shorts are crafted from lightweight PWX compression fabric to provide anatomically mapped muscle support for greater performance and recovery. These running shorts feature an elasticated waistband with three pockets at the waist and reflective logo details. We're not sure why, but paper maps are making a comeback. Remember those ordnance surveys at school trying to embrace the great outdoors with soggy, torn-to-shreds maps? Well, who needs all that with these 2XU shorts mapping out your muscles?