Attention: Please measure your heel to toe length and choose accurate size according to the foot measurements. 35 EU -- 22.5cm (Foot Length) -- 4 US Men -- 5 US Women 36 EU-- 23cm (Foot Length) -- 4.5 US Men -- 6US Women 37 EU-- 23.5cm (Foot Length) -- 5.5 US Men -- 6.5 US Women 38 EU-- 24cm (Foot Length) -- 6 US Men -- 7.5 US Women 39 EU -- 24.5cm (Foot Length) -- 7 US Men -- 8.5 US Women 40 EU-- 25cm (Foot Length) -- 7.5 US Men -- 9 US Women 41EU -- 25.5cm (Foot Length) -- 8.5 US Men -- 9.5 US Women 42 EU -- 26cm (Foot Length) -- 9 US Men -- 10 US Women 43 EU-- 26.5cm (Foot Length) -- 10 US Men -- 10.5 US Women