I purchased 2 pairs of clogs at the same time in order to best determine what size I'd fit into. Once I determined the appropriate size, I returned the other pair. At first, the company was a little hesitant to give me my full refund but after some nice back-and-forth communication, they agreed with my logical reasoning and provided the full refund. Although the process of return and having to argue my case were a bit annoying, that level of communication and customer service was refreshing and deserves top marks.In regard to the clogs themselves, they are very strong. They are somewhat of a mix between crocs and dansko's which is what I was looking for. I'm an orthopedic surgery resident and rotate between my new calzuros, crocs, nice running shoes, and danskos. All 4 have their own characteristics which makes them special - you just have to know what you're looking for. Calzuro's are a fantastic product and perform well. Easy to clean, durable, and comfortable. Again, they behave somewhat as a hybrid between crocs and danskos - almost like a softer clog. 5 stars in my opinion.