The G8 Performance Metdome Metatarsal Pads attach to your 2620 or Ignite insoles to provide extra comfort and promote proper foot function. These pads are designed to increase blood flow to the foot, preventing toe numbness. This is also great for temperature regulation through high effort exercise. Please note that a relatively new pair of insoles is needed to attach these pads. Old insoles with a worn top cover will not adhere to them. The Metdomes fit under the first and second metatarsal heads at the ball of your foot, gently lifting and spreading the toes to increase blood flow. This product is perfect for athlete who experience numbness or tingling in their toes or have issues with overheating feet. The G8 Performance Metdome Metatarsal Pads are another step toward all day foot comfort.