Although Yonex Power Cushion Insoles were purpose built to boost cushioning and responsiveness for tennis and badminton shoes, these insoles will improve the performance of any court sport shoe. The tread pattern in the forefoot provides greater traction for the foot within the shoe, helping to increase stability in transitional movements.  Not all cushioning foams are created equal.  Power Cushion is one of the most resilient, shock-mitigating materials in the footwear market.   

This product comes in S, M, L, XL.  Each size covers a range of sizes.  These are designed to cover shoe widths up to 2E.  Purchase the size that covers your shoe size.  Use your the insole from the shoe you intend to upgrade as your template for the removal of excess material.  Instructions are provided on the packaging.

US Size chart:

S- Men's 3.5-5.5, Women's 4.5-7

M- Men's 6-8.5, Women's 7.5-10

L- Men's 9-11.5, Women's 10.5-13

XL- Men's 12-14

Japanese size chart(centimeters):

S- 22.0 - 24.0

M- 24.5 - 26.5

L- 27.0 - 29.0

XL- 29.5 - 31.0