1Multiple magnet design, safe and ecofriendly, odorless, strong magnetic, good therapy effect. 2Bottom bump massage, breathable and sweat-absorbent, comfortable to wear. Double density EVA material, eco-friendly and healthy. 3Magnetic therapy massage function, increase blood circulation, antifatigue, improve sleeping and help slim body. 4Sole curve design, fits the soles of the feet, has arch support effect, you will not feel tired after long time standing. 5Light weight and easy to wear, not easy to deform, you can cut it according to your needs.