The World"s Only Patented Weighted Apparel, TITIN"s Force System combines ingenuity with function, enabling the user to perform their normal workouts while working harder and smarter. The results have been proven from adding 4 pounds of muscle mass in two weeks, to increasing a vertical leap by 4 inches after a 45 minute workout with the shirt, without ever compromising form or joint function.The gels are place strategically on muscles to ensure full range of motion and to also take stress away from the joints, promoting proper posture and enabling complete control of every workout.The gels stay pliable at all temperatures and do not burst or ooze under any circumstance. This product can be used as a mobile ice bath or heating pad, giving strong use in rehab, resistance training, and crossfit style workouts.NFL, NBA, MLS, MMA, MLB, 4-star Generals, and Rugby players are strong users of this product.The cover shirts, pocket shirts, and gels are sold individually at shop.titintech.com. Compression weighted shorts and custom sublimation are also available by special order. Contact Scott Hakim at shakim@titintech.com for additional information.