DescriptionThis product is a set of 3 pairs of insoles, made of aluminum foil, non-woven fabric and foam material, high-quality and durable. Breathable and sweat-absorbent, will not make your feet smelly. It will keep your feet warm in the cold winter or cool in the hot summer. Choose one for you.Features- Color: White. - Material: Aluminum foil, non-woven fabric, foam. - Size: Approx. 30.00X9.50X0.60cm/11.79X3.73X0.24in. - Made of high-quality aluminum foil, non-woven fabric and material, durable and practical for long-lasting use. - Two sides are available, one side is used to keep warm in winter, and the other side is used to cool in summer. - Suitable for sneakers, high heels, canvas shoes, sports shoes, cotton shoes, and other style of shoes. - Breathable, comfortable, sweat-absorbing, and will not stuff your feet. - It can be washed without affecting the warmth retention effect.