These are awesome work shoes. I am a nurse on my feet for up to 12 hours at a time. Sturdy material, good support. However they run big. Ordered my normal size and had to return. Ordered the next smaller size and they are still a little big. I have to wear 2 pairs of socks to keep my feet from sliding.Es bueno solo k encargue el numero muy grandeI love my sandal Birkenstock, so I choose the Birkies clogs for work. I have wore them for a week and my legs and feet are in pain when I get home.. I’m in healthcare and buying good shoes are important. I wish they have worked out because I like the look of them.The shoes had two different sized inserts. One was a 39, the other a 37! The shoes ordered were 39. Instead of being able to return these or simply get a correct sized insert they refunded me completely. What a waste.The shoes are quite large as well. I’d order a size down next time.Good shoes overall. I wear a size 40 in Dansco’s, so ordered same for these; too big. Suggest ordering one size smaller than you wear in Dansco.Definitely a great shoe for the kitchen.They are a little big fit my shoe size so I wear extra socks to compensate. That works just fine. Very high quality insoles that live up to the Birkenstock legend come with these slip ons.Worth the wait. Nice shoes ??I loved my old Birkis, which I must have worn for gardening for over 12 years -brilliant shoes, but the soles have pretty well worn flat now, so I needed some new ones with fresh soles that would be more slip resistant. I ordered both the 39 size - too short and far far too wide, and the 40, vast all around. So both had to go back. The piece at the back of the heel is higher than before, too, so the smaller one was more difficult to get into. I have to find a different brand now. Too bad.This product is amazing in my opinion, also essential for work, because they support your back as well as they giving you a comfort to your feet. Been using few pairs of them in the last ten years, so they are well tested. Berry in mind, that they are not very comfy for long walks, but for small spaces kitchens alike work, they are perfect.Usually size 39 fits me perfectly. This time the clogs are too big. I will have to give them to a friend. They are simply too long in the foot and my heel lifts out.Cannot fault service. Clogs are as description.I love birkenstocks, but these clogs fit way too big. Probably 2 sizes too big. And even the correct fit are very loose and wide, they slip off your heels while walking. I returned these shoes.