Dear Customer, Welcome The products from this store:made by good quality material,Soft,Lightweight,Breathable,Lasting and Durable Please refer to the details of this product,so as not to cause unnecessary trouble.Please allow 1-2cm deviations due to the difference of manual measurement EU35=3/4.5 US EU36=5.5/4.5 US EU37=6/5 US EU38=7/6 US EU39=8/6.5 US EU40=8.5/7 US EU41=9.5/8 US EU42=10/8.5 US EU43=11/9.5 US EU44=11.5/10 US EU45=12/10.5 US /p> Kindly Notes: Please feel free to contact us if you have any problems or concerns. Thanks for your understanding. Because each person's feet are not the same, if the size is a little deviation, please understand,thank you very much!