This pair of Crocs fits like my old pair of classic, so the sizing has not changed for this style, which is supposed to have a relaxed fit. If this had the wider or roomy fit, it would be too wide for my foot. This Crocband does not allow as much air flow as the classic and is therefore warmer at this time when I am still wearing it with socks! The tread is not as strong as my old Crocs and will wear sooner, but for now it has a good grip on a wet surface.