Unused M size black yoga socks, excellent fit and design. - Size: M - Color: Black - Condition: Unused Thank you for viewing. #Ikura Select Items We have Runway Cure Sole and Core Supporters, etc., but for those who are considering trying them out first because they are expensive, how about these? These are only tried on. These are imported products. Even with these, I feel like my posture is straight and I'm aware of it.