I tried buying it as one of measures against cold weather. It was better than nothing but did you expect too much? When you ride a bike for a long time, your feet get cold. One point to note. The thickness of the insole is 6 mm. I think that it is better to avoid this product when the inner dimension of the shoe is not enough under the present condition. Will purchasers never get lost if they are in product notation? Consider adding Monotaro san, inscription.