Superfeet Run Cushion High Arch Superfeet Sizes:F simply adjust the locking device

simply adjust the locking device for adjustable tension

When your toes are separated

**Not tested at hypersonic speed

Pocket expands to 8″ x 4″ x 2″

Internal rear panel adjustability for fit

Superfeet Run Cushion High Arch Superfeet Sizes:F simply adjust the locking deviceSuperfeet Run Cushion High Arch insoles provide signature Superfeet shape in a lightly structured, cushioning insole with a high arch profile made to feel like part of your shoes. Flexes and adapts to your foot's natural motion for a smooth, easy ride. Get unbelievable comfort and support without changing how your running shoes were built to perform. Fits well in running shoes and athletic footwear, including zero drop running shoes. Trim to fit your