I got these as I have wonderful wellies but trudging for hour long walks got very hot. My walking boots were getting trashed from constantly getting wet and muddy, walking through unavoidable puddles. These seemed worth a go for those in-between days! They're prefect. Very comfortable even for longer walks of over an hour. I'm very much a size 7.5, 7 is normally too small, 8 a touch too big, but I got the size 8 and with a thin pair of socks and a thicker walking sock over the top the boots fit ...