-All man made materials -4.5" Heel -Camel -Inner zipper: is functional -Outer zipper: non fictional just for looks **Suggestion: Size up half size. : I wear size 7.5 regularly. Size 7.5 on these booties fit snug if worn with socks because of the fur inside . without socks they were perfect fit. If you plan to wear socks size up half size if no socks order your size