The inner length of size 170 is about 16.5cm (suitable for 24/25 feet)The inner length of size 180 is about 17.5cm (suitable for 26/27 feet)The inner length of size 190 is about 18.5cm (suitable for feet 28/29)Approximately 19.5cm in length in size 200 (suitable for feet 30/31)The inner length of size 210 is about 20.5cm (suitable for 32/33 feet)The inner length of size 220 is about 21.5cm (suitable for feet 34/35)36-37 [suitable for sizes 35-36]38-39 [suitable for sizes 37-38]40-41 [suitable for sizes 39-40]42-43 [suitable for sizes 41-42]44-45 [suitable for sizes 43-44]
