Reinforced waterproof Spotex membrane, first quality nabuk leather, Special design so that the body maintains its correct position both when walking and standing. Its sole does not slip even on the most slippery soils. More specifically, the ACTIVE sole consists of 5 different levels, has small elastic springs that massage the foot, extra foam with small air bubbles for complete absorption of vibrations, above them there are perforated activated carbon insoles for air recycling so that the foot does not sweat and does not smell, and finally the bottom with double density PU, antistatic, and with total grip technology, which makes the sole non-slip but also resistant to all soils. Ideal for anyone who has a problem with the waist, knees, etc.