The Asberley 9×1 ribbed silk socks are knit from Swiss ‘Tram’ silk, which is a yarn formed by twisting strands together to produce a thread with a shimmering appearance. Even in warm conditions, the Asberley ultra-sheer, over-the-calf silk socks remain cool and comfortable to wear, while their ultra-thin profile and luxurious composition makes them the perfect socks for black-tie and other formal events. ◦9×1 rib knit ◦Shimmering appearance ◦Excellent wearability and moisture absorption ◦Luxurious yarn ◦70% Silk, 30% Nylon ◦Long/Over-the-calf ◦Pantherella’s signature hand-linked ‘seamless’ toe SIZE MEDIUM (US 8.5 to 11) Since 1937 Pantherella has been making world-class socks in their factory in Leicester, England. Pantherella socks are unrivaled for their quality, style and comfort.