I have worked as a waitress for over 20 years and have spend 1000's on shoes that would fit right and be comfy through an 8 hr. shift. I never did find the comfy shoe while waitressing but 1 & 1/2 yrs ago had a baby girl my first /only child and decided to go back to school seeing that my knee's and feet have had enough walking around carry heavy plates ect. I decided to study to  become an RDA where I could still use my social skills in a Dental office with out the stress on my feet and knees.  My uniform is Dental scrubs and White tennis shoes.  I have  very high arches and always wondered about these Shape Ups.  When they went down in price & reading the reviews I gave them a try.  These shoes are WONDERFUL they really are comfortable they are so cushioned and the rocking motion just gives my arches the support they need I highly recommend these shoes to those of you who are on their feet throughout the day.  I only wish They had came out with shoe earlier because they do make them in black leather also.  Never have I worn any shoe for 8 hours without complaining  of pain until now.  My knee's haven't been hurting and i've been sleeping like a champ.  This 44 year old (going on 24) has a new lease on life and these shoes are definitely making my journey more comfortable.