Love these walking boots - would call them more of a trainer than a walking boot. They are extremely comfortable. I am a size 5 and ordered a 5 which is true to size but leaves no room for a thick sock but a thin one is ok. If they had sold half sizes I would have bought a 5.5 to allow for thick socks in the winter. Delighted they are waterproof and love the colour mix of black and pinky red.