Feet are the "second heart" of the human body. JFT insole massage granule design stimulates multiple acupoints in the sole of the foot, promotes smooth blood circulation, easily enjoys foot treatment and health, carefully protects your "second heart". Several delicate air permeable round holes, patented convection design. Always keep it dry and fresh, improve sweaty feet, away from feet itching and feet smelly.The foot heel is designed with convective air bag, and forefoot health massage design. The convective air bag is filled with air, and when the air bag is under heel pressure.The air inside the airbag can circulate with each other and disperse the pressure, so as to achieve the effect of cushioning, shock absorption and decompression. Soft and comfortable insole is suitable for a variety of foot types, walking more easily. Adopt ergonomic principle to design air bag creatively, fit the foot of different arch.The airbag is coherent, perfectly wraps the sole. It's soft and comfortable, movement is more relaxed. Effective antibacterial, reduce odor. Far infrared can promote blood circulation, strengthen human immunity, reduce muscle fatigue, so as to inhibit foot bacteria breeding, achieve antibacterial, anti-inflammatory, effectively reduce odor, keep your feet fresh.