Feature: 1. The heel is equipped with a convection air cushion, with a healthy toe massage design, when the air cushion is under pressure from the heel, the air inside can circulate with each other to disperse the pressure. 2. In terms of cushioning, shock absorption, and decompression, the insole is soft and comfortable, suitable for a variety of foot types, and walks more easily. 3. Ergonomic design is used to effectively relieve fatigue, relieve heel pain, correct flat feet, and shape beautiful feet. 4. Built‑in far infrared rays can promote blood circulation, strengthen human immunity, reduce muscle fatigue, and effectively reduce odor. 5. The insole massage particle design stimulates multiple acupoints on the soles of the feet, promotes unblocked blood circulation. 6. Unlimited breathability keeps the shoes dry and breathable at all times, improves sweaty feet, stays away from peculiar smells, and allows your feet to breathe freely. Specification: Item Type: Massage InsoleMaterial: TPUColor: GraySupport for trimming the forefoot part at will, the insole has been marked with auxiliary lines, trimming will not drop chips.. Package List: 2 x Massage Insole Note: The heel and arch of the foot insole are designed with air cushion, so please do not trim them.