This is the original insole (inner sole) that comes with Asics tennis shoes. GEL RESOLUTION series COURT FF3 series SOLUTION SPEED series Common to all You can also use them in tennis shoes from other companies such as Yonex and Mizuno. Heel cup shape Excellent cushioning! Compatible shoes: Tennis, basketball, volleyball, running, baseball, sneakers, hiking, safety shoes, table tennis, soccer Can be used in shoes from other manufacturers. I am selling these because I am replacing them with different insoles and no longer need them. Unused, brand new. *Please refrain from price negotiations. Shipped via Nekopos. Popular model: GEL-RESOLUTION X