I have flat foot syndrome or whatever its called. I wore crappy flip flops and Converse most of my life and it caught up to me so now I wear Dansko shoes and they feel great, but they're pretty pricey and I don't like the look of their sandals so I went searching for another brand. Found Vionic on a list of shoes similar to Dansko and yay! they were on Amazon Prime! I was worried about the sizing, because with Dansko I have to wear a 41 which is apparently equivalent to to 10.5-11 in womens! Wha?! I wear between an 8.5-9.5 in other brands. I gambled with a 9 with these babies, and BAM! fits perfectly and super comfy!! I have a little soreness in between my big toe and second toe, but thats to be expected since I haven't worn flip flops in AGES and I missed it sooo much! Summer be comin and I needs me some open toed shoes! They look nice enough to wear in the office so thats a plus.