Josef Seibel Sienna 45, leather, size 40 in "petrol" color, which is a bluish green with a touch of gray. Overall like a muted teal leaning on the bluish tones. Very attractive boot, I fell in love with the color and they became so attractive that I went for the only available size, a 40 when in reality I am a size 39. Boots are in excellent used condition, as in essentially new. If you are a 40, you will love them. Seibels are a stable in my closet, they are a great shoe brand.