These are my favorite style of crocs because they are the most comfortable. Getting the sizing right is hard though, but hopefully this will help. Each color fits different. The colors I own are Real Tree in both bone and black, army green, pink clay, and atmosphere. I've noticed with crocs that bla...ck usually fits true to size all the time, and anything white or off-white fits bigger. I wear 10's in crocs with a few 9's here and there. I got the pink clay (first run) in one size smaller, a 9 and they fit like a dream; I wear them all the time. I got the army green in 9 and they are a bit too small in the length so my toes are pressed at the top; wish I had gotten a 10! I got the atmosphere in 10 and they are way too huge; wish I had gone down to a 9 in those too. The best color is the army green ones, if they restock I'd go back to a 10 in those. Love the pink clay too. But I got the pink clay right when they went out of stock, so got the first run before they were restocked. The RealTree fit a bit too big on me, but mostly the lighter color was too big. I thought I'd like the atmosphere color but they look very plain in person, not a fan of the color but I love my echo slides in atmosphere. I wish there was more consistency with the sizing, getting the right size comes with risk, but tossing them wet in the sun to dry might help if they run big which I'm going to do with the atmosphere ones.