These shoes are literally the bees knees. They feel like you're walking on clouds with insane support. These come with a super thick insole that is removable. If you leave the insole as is, then size up one if you're in between sizes. A size 10 will likely want the 11. If you plan to remove the insole and add a flat sock, they are true to size. Ash is a 9/9.5 and wears the 10 with the original insole and can do the 9.5 with a flat sock in lieu of the insole. Lola Monroe, Socks For Flats, The Bees Knees, On Clouds, Walking On Clouds, Bees Knees, Judy Blue Jeans, Beauty Items, Relaxed Fit Jeans