|B: 2.5-4 Junior. 4.5-6 Women's.|
|C: 5.5-7 Men's. 6.5-8 Women's.|
|D: 7.5-9 Men's. 8.5-10 Women's.|
|E: 9.5-11 Men's. 10.5-12 Women's.|
|F: 11.5-13 Men's.|
These customized fit insoles from Superfeet are made for tighter fitting footwear such as athletic shoes, casual shoes, dress shoes, and golf shoes. The Black insoles are designed to fit in low-volume footwear without removable insoles.