Lightweight and comfortable light blue tennis shoes, the SONICAGE model. - Brand: YONEX - Model Name: SONICAGE3AC (for all courts) - Color: Grayish Blue - Condition: Used 3 times on clay courts - Purchase Price: 13,200 yen Thank you for viewing. I am selling these because the size didn't fit. They have only been used 3 times on clay courts, so they are in relatively good condition. I decided to list them for sale for those who, like me, are struggling with finding the right size.