First. They are comfortable. I have only worn them around the house and at a health club indoor pool area for a total of 5 hrs.  They are narrow.  I'm ok as I sometimes need a touch more than normal ( D). Shoes I get are an E. These flops are D . I purchased the 10 and never need more than a 10 (my true size is 9 1/2+ and these just fit with no room to spare.  Go one size up for sure.  Under thirty dollars is better. Amazon price fluctuates from 26-35. Get them from Amazon (Amazon as seller as well) because of free shipping and free returns.