It is comfortable, This vitality magnetic acupressure insoles are designed with a contoured heel and arch support for the feet to ensure maximum comfort and arch support. You can wear the flex insolesevery day, during a normal stroll, heavy exercise, trekking, and during a variety of physical activities. The magnetic massage insoles with 8 cooling magnets that can produce gentle magnetic waves with natural magnetic, it's specially designed to relieve many common pains in the feet, pains in the arches, heel pain, plantar fasciitis, etc. prevent cramps, and ease tension all over the body. It reliefs pain. Medical silicone - shock absorption, soft and washable. The magnetized acupressure insoles with 250 air holes designed to make the insole ventilation better and keep your feet cool. It is durable and ensures proper ventilation Cutable design, you can change the size by cutting along the available size line if necessary. application for all types of men's and women's shoes like running shoes, work boots, sneakers, street shoes, slipper, flats and more. It is a widely applicable productIf you just started wearing wearing magnetic insoles and feel particularly painful. It is because your internal body have a bloody blockage that Chinese medicine says, and normal people can't feel it. Please try slowly, don't take too long in the beginning, the effect of acupressure will comb your blood, this is the real role of the massage insoles