The method of electric muscle stimulation combined with active exercises helps to develop and tighten muscles, so this is NOT the lying treatment used in cosmetics. We do simple gymnastic and strengthening exercises in the clothing, synchronized with the electric muscle stimulation, so the muscle building and fat-burning is ten times more effective compared to doing the two things separately. The essence and key of the E-Fit training’s effectiveness is the simultaneous whole-body stimulation. All muscle groups are being trained at the same time, so the average training time becomes six times shorter. During the long hours spent in the gym we do separate exercises to train each muscle group, which means 15-20 minutes training time for each body part, and 3-4 series of every exercise, resulting 30-40 muscle contractions. In contrast with that, training with the E-Fit device provides the training of all muscle groups at the same time and due to the electric impulses 30-40 micro-contractions of the muscles happen in every single second, plus the basic training exercises stimulate the warmed-up muscles even more which result circa 36.000 muscle contractions in the whole body only in 20 minutes. The 25 minutes training provides 45.000 muscle contractions. The soul of the E-fit devices is the clothing (vest and shorts), made of light and strong material. These clothes, made of antibacterial, easily-to-clean and breathing material, carry the electrodes and keep them at the right place.