Color: Black. Material: EVA memory foam. 3 pairs of sizes: length 27.7cm x height 2cm, thickness 0.8cm; length 27.7 cm x height 3 cm, thickness 0.8 cm; length 27.7cm x height 4cm, thickness 0.8cm. It can effectively prevent the soles of the feet from slipping in shoes and increase the comfort of shoes. Stealth design won't attract anyone's attention. Suitable for men and women. Suitable for most styles of shoes, trainers, boots and sneakers. The soft and comfortable foam sole, with good cushioning effect, helps relieve foot pain and fatigue when walking. walking, suitable for standing for a long time. Full-length design makes the insole more suitable for men's and women's shoes. Stealth design won't attract anyone's attention. Suitable for most styles of shoes, trainers, boots and trainers.