Thank you for viewing! (^_^) Please also check my profile, if you don't mind. *•.¸¸♬.•*¨*•.¸¸♬.•*¨*•.¸¸♬ I knitted these for myself because I have cold feet, but I'm selling them because I want people who also suffer from cold feet to try them out. Please give them a try! (ㆁᴗㆁ✿) *•.¸¸♬.•*¨*•.¸¸♬.•*¨*•.¸¸♬ ✿ Approximately 25 cm. Since they are made of yarn, there is some give. For those who prefer a loose fit, or a snug fit, please consider your own foot size and choose accordingly o(^▽^)o *•.¸¸♬.•*¨*•.¸¸♬.•*¨*•.¸¸♬ ★ These are knitted with two strands: 100% wool (worsted weight) and acrylic (fingering weight). As requested, I've made the heel deeper. ★ Soft elastic is knitted into the ankle area, making them stretchy and easy to put on and take off. Even if you put them on and take them off repeatedly, the ankle part won't stretch out and get ruined easily. They are knitted with extra room so you can wear them over socks. They are not stiff like room shoes, but have a fit that allows your toes to move freely! Also, they are thin enough to wear slippers over them. ✾ No non-slip material is attached. ✾ These are handmade items by an amateur. There may be distortions, uneven stitches, etc., so please consider this before purchasing. Ankle length... Foot covers Type of socks... Room socks Pattern/Design... Bordered