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 wanted people who are also suffering from cold feet to try them, so I'm selling them. Please give them a try! (ㆁᴗㆁ✿) *•.¸¸♬.•*¨*•.¸¸♬.•*¨*•.¸¸♬ ✿ Flat measurement is about 24-24.5 cm. Since it's made of yarn, there is some stretch. If you prefer a loose fit, or a snug fit, please consider your own foot size and choose accordingly! o(^▽^)o *•.¸¸♬.•*¨*•.¸¸♬.•*¨*•.¸¸♬ ★ This is knitted with a combination of 100% wool and acrylic yarn, plus a thin acrylic yarn, using two strands. ☆ I'm using leftover yarn and offering this as a trial product, so the price is low(^^) ★ Soft elastic is knitted into the ankle area, so it stretches well and is 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. I've knitted them with extra room so you can wear them over socks. They're not like rigid room shoes, but have a fit that allows your toes to move freely! Also, they're 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 before purchasing. Ankle length... Foot covers Socks type... Room socks Pattern/Design... Border