Brand: Sketchers. Style Name: Kinetix Response. Style Number: 12340. Kinetic Wedge Technology. An ultra-soft kinetic wedge of polyurethane extends from heel to toe, giving each stride a gradual transition. The softer, lower layer provides superior cushioning and creates natural instability. This helps increase muscle activity by forcing the foot and body to constantly adjust for proper balance and positioning. The Skechers Radius Trainer (SRT) women's toning shoes were put to the test in a six-week clinical trial, during which participants were instructed to wear the shoes during their normal activities and typical walking programs. At the end of six weeks, results indicated an average of 3.25 pounds lost, a 1.125% reduction in body fat, an average improvement of glute strength by 41%, and an average improvement in lower back endurance of 37%.