Note:EUR size is the unified standard size worldwide If you usually wear EUR size, please choose EUR size directly, no need to measure any length; If you usually wear USA size, check your size label of existing shoes whether containing EUR size; If still not know, please choose your EUR size according to your measured foot length(Heel to Toe)! Standard EUR Size: 34=EUR 34=Foot length 22 cm 35=EUR 35=Foot length 22.5 cm 36=EUR 36=Foot length 23 cm 37=EUR 37=Foot length 23.5 cm 38=EUR 38=Foot length 24 cm 39=EUR 39=Foot length 24.5 cm 40=EUR 40=Foot length 25 cm 41=EUR 41=Foot length 25.5 cm 42=EUR 42=Foot length 26 cm 43=EUR 43=Foot length 26.5 cm 44=EUR 44=Foot length 27 cm 45=EUR 45=Foot length 27.5 cm 46=EUR 46=Foot length 28 cm 47=EUR 47=Foot length 28.5 cm 48=EUR 48=Foot length 29 cm 49=EUR 49=Foot length 29.5 cm 50=EUR 50=Foot length 30 cm (Wide foot or high back, please choose one more size.)