The Superfeet Green Premium Insoles provide maximum support, stability, balance and shock absorption. The rear and mid-foot control points help stabilize the mid-foot, and the durable and the light-weight polypropylene stabilizer cap provides optimum control and flexibility. Every Superfeet Premium Insole features a patented stabilizer cap for optimal underfoot support. When integrated with the shape and design of the foam full length, this unique combination creates a deep heel cup to cradle the heel’s fat pad for improved natural shock absorption. The system provides comfort and necessary stability for different activities, footwear, and foot types. Additionally, because the heel is the foot’s first point of contact with the ground, Superfeet's deep heel cup design absorbs shock and initiates proper bone alignment. From heel strike to toe-off, the high-density foam full length supports and provides comfort for the entire foot. Superfeet top covers are treated with an environmentally friendly, anti-microbial coating that helps to reduce bacteria and prevent foot odor.