The sperry brand was very comfortable as far as cushion inside and then had enough room to spread your toes comfortably.. However, next time, I would buy the shorter ones that go just enough above the ankle to keep the water out. I mention this because I bought ones that go almost to your knee and when I walk, I don't like where they bend (which is between the top of my foot and where your shin begins... the crease right there can be uncomfortable.. AND... I always had to wear longer socks , otherwise, that same spot would get a blister.. I think it's the length that was a problem.. maybe if you have really skinny legs and shins it won't bother you.. but if you don't and or like me (medium build) then I just think the ankle ones are the better way to go..
oh buy em on Zappos.. if you don't like whatever boots you buy, you can easily return them..