Heel Tread - Supermarine Spitfire Socks - EU 41-46 UK (7-11) US (8-12) - Made in Portugal * The Supermarine Spitfire is a British single-seat fighter aircraft that was used by the Royal Air Force and other Allied countries before, during, and after World War II. The Spitfire was designed as a short-range, high-performance interceptor aircraft by R. J. Mitchell, chief designer at Supermarine Aviation Works, which operated as a subsidiary of Vickers-Armstrong from 1928. During the Battle of Britain, from July to October 1940, the public perceived the Spitfire to be the main RAF fighter, though the more numerous Hurricane shouldered a greater proportion of the burden against Nazi Germany's air force, the Luftwaffe. 80% Combed Cotton, 17% Polyamide, 3% Elastane. Made in Portugal using the most advanced craftsmanship to produce the finest seamless socks. Wash inside out (40ºC/100ºF max). Do not tumble dry, iron. - Size: Large: L: 41-46 UK (7-11) US (8-12) Composition 80% Combed Cotton, 17% Polyamide, 3% Elastane. Made in Portugal using the most advanced craftsmanship to produce the finest seamless socks. Wash inside out (40ºC/100ºF max). Do not tumble dry, iron.