Sport-Tek PosiCharge Tough Mesh Pocket Short. ST312A moisture-wicking short built for the gym and beyond. PosiCharge technology ensures optimal printability., 5.3-ounce, 100% polyester flat back mesh with PosiCharge technology, Elastic waistband with continuous loop drawcord, Side pockets and back hip pocket with dyed-to-match button, 9-inch inseam, If applying sublimation, special care must be taken throughout the process. Contact your decorator for more details.