20 tennis string is a high-performance and versatile polyester string designed to generate extreme power and intense spin

Recommended 10-15% less tension on Kevlar mains than other synthetic polymer crosses

These insoles are biomechanically engineered for a womans foot and gait cycle

15 tennis string is designed to offer excellent playability and control

This string provides premium durability along with increased control and spin potential

Sof Sole Gel Arch with Memory Foam Size:Women's 20 tennis string is aGet the comfort you deserve with the Sof Sole Gel Arch with Memory Foam! This gel insert with memory foam adapts to your foot to provide cushion where you need it most. It fits almost all shoe types while adding flexibility and support. With the Sof Sole Gel Arch with Memory Foam, every step feels like home. Thin, flexible edges adapt to fit most shoes Separate arch and heel components improve comfort Memory foam layer contours to the foot for extra