These are the most comfortable shoes I have ever had on my feet! As soon as they arrived, I put them on did not take them off until the end of the day,<a data-hook="product-link-linked" class="a-link-normal" href="/Keen-Women-s-Briggs-II-Leather-Casual-Shoe/dp/B003O2SGUW/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Keen Women's Briggs II Leather Casual Shoe</a>&nbsp;& I have worn them everyday since! There was no need to break them in! I have had my knee replaced 3 times & had many additional knee surgeries. I have wasted so much money, time researching, shopping & returning uncomfortable shoes. No more, I will be a continued customer of Keen brand. I also will be recommending these shoes & brand to all my family, friends & anyone with knee pain!