I bought these in the stone oiled leather. They are amazing. I tried them on in the Clarks store to find the best fit. I am typically between an 8 and 8 1/2. I found the 8 1/2 to be a little too roomy. The leather does wear in the more you wear the boot, and I have found the 8 to be the perfect fit. I have normal sized calves, and have not had a problem wearing these over skinny jeans. They are extremely comfortable; I have worn them working an 11 hour day on my feet running around all day and my feet felt great by the end of the day. I love these so much, I am purchasing them in black as well. I receive a ton of compliments every time I wear them. I would highly recommend adding these to your shoe collection.