If you have quite sturdy feet, please choose our regular/large model. We advice the narrow version of our shoes for customers with particularly slender feet. The difference between narrow and large is approx. over 0,5 till 0,8 cm. Your feet should have the right fit into the footbed form, but not too narrow. Your toes and heels should have enough room allowing them free movement.
Do you happen to have some Birkenstock® shoes at home? If so, please pay attention to the footbed of your shoe: indeed, a small foot draft will let you know which width you should wear. If the foot draft is filled, then you have slender/narrow feet, if it is not filled (only the outline) then you have large feet.
If you do not possess any Birkenstock® shoes and you are still not sure about the width you need, the only thing that helps is trying. You are the only one that know what fits you best. Furthermore, as far as the shoes do not have any traces of usage, you can also send them back to us and ask for an exchange (please read also the paragraph over How may I return or exchange shoes that do not fit or I do not like?).