Size 6.5 9 3/16in. (23.3cm). 2 7/8 in. (7.3cm)
Size 7 9 5/16in. ( 23.6cm). 3 in. (7.6cm)
Size7.5 9 1/2in. (24.1cm). 3 in. (7.6cm)
Size 8 9 5/8in. (24.5cm). 3 1/8 in. (7.9cm)
Size 8.5 9 3/4in. (24.8cm). 3 1/8 in. ( 7.9cm)
Size 9 10 in. (25.4 cm). 3 3/16in. (8.1cm)
Size 10 10 5/16in. (26.2cm). 3 3/16 in. (8.1cm)
Size11 10 5/8. (27cm). 3 5/16 in. (8.4cm)