Used only twice on a motorcycle as a trial. Size L. My shoe size is 27cm, and it's a perfect fit. -- Stretchy black thermal socks, size L, ankle-length design. - Size: L - Type: Toe-covered type - Features: Heat retention, breathability, 3-layer construction Fits your feet and prevents stuffiness! Inner socks An essential cold weather item for the cold winter ●Product Features● Uses SKILL® (Skill), a breathable material! ・High-performance material using polyurethane film Features of SKILL® (Skill)! ・Heat retention that prevents body heat from escaping ・Breathability that prevents stuffiness inside the clothing ・Windproofness that prevents cold wind from entering the clothing Convenient! ・Wearing over socks provides even warmer comfort ・Perfect as inner socks for boots and rain boots! Material Nylon, polyurethane, polyester ※Please wear over socks Cold protection Socks Inner socks Inner Cold weather対策 (countermeasures)