I'm selling these because I don't need them! Winter Thermal Inner Socks - Black Size L (25-27cm) They might be too tight for someone who usually wears 27cm, so they'll probably fit better for those around 25cm! They are about 18cm long from the heel! Both sides are nylon jersey for a snug fit. 0.8mm thick. Excellent heat retention due to synthetic rubber sandwiched between the materials. Breathable and less prone to stuffiness, a must-have for work in cold regions. Stretchy material that can be worn over socks. Warm due to the moisture-retaining material! Both sides are made of soft nylon jersey. Brand new, unopened with tags! Please understand that this is a personal sale. HA-415