Y HeelThe Y heel design allows the socks to stay in place throughout the day and prevents the sock from slipping down you foot. | SEAMLESS TOEThe toe seam is linked together with a single thread so the toe feels less bulky. It is smooth in texture and there are no obvious joins or gaps. | Extra Fine Combed CottonThe Cotton is combed to tease away any imperfections and any short fibres leaving only straight fibres. This process results in stronger and finer cotton and a more luxurious feel. | Over the Knee LengthOur Over the Knee socks are designed to sit on the thigh. They sit comfortably through out the day with no slipping. |