these are my 3rd pair of sanuks and I love all of them.  as usual, I wear size 11 in sanuks, and these fit perfectly.  I usually wear a 10.5-11 in most running shoes. these shoes are easy to slip on and off, but stay snug on my foot.  they are not meant to be worn for power walks or marathons, so don't be surprised if you get some mild foot fatigue after 12 hours of wear.  However, to walk the dog, go out to dinner, run some errands, hit the beach or day out on the boat . . .  .PERFECT!!!!!!!!!!!!