TITIN Inner 14-Pocket Weighted Compression Shirt The 14-pocket inner shirt serves as the base layer of The TITIN Force weighted shirt system. Strategically placed pockets position weighted hydro-gel inserts across the chest, back, shoulders and upper arms. The TITIN Force system was designed with the top level athlete in mind. Incorporating double-reinforced stitching & a smooth performance zipper that makes it easy to put on and take off with all 8 pounds of gel-inserts in place. Knowing you will do a lot of sweating in this shirt, weve incorporated A.M.Y. antimicrobial yarn to block odor and germs. Gel weights sold separately. This item DOES NOT include the gel weights. Please see TITIN Force Shirt System.