These pair of shoes are the ones that I wear on my nursing clinicals and they are AMAZING. I have flat feet and the memory foam inside support and massage my soles all day. The only issue that I have with these shoes is that I have been using them only for my clinical rounds for the hospital (past 6 months)and it seems the right shoe on the inside may be a defective side. The seam has torn and I even tried to temporarily repair it with our sticky IV line tape to no avail. It's not like I'm being rough on them, I walk up and down the unit and care for my patients and even take some flights of stairs after my clinical...not running, jumping, or doing anything crazy; the print on the inside of the shoe on top of the memory foam is still there to show that I haven't been rough. I love these pair of shoes and highly recommend them, but I'm not sure who I need to contact because of this inconvenient defect. I have already tried to return them through amazon and apparently they are not up for return ability...any help would be much appreciated :(