These were comfortable since the first time I put them on. I got my usual size 7 that I wear in all the flats I buy. I've been wearing them to "break them in" before my vacation abroad, but there was really no need to do so since they fit so good. I have purchased many Skechers memory foam shoes for work, but this is my first pair of Bobs and I love them. I'll definitely be ordering more of them.