Heel Tread - Messerschmitt Bf-109 Socks - EU 41-46 UK (7-11) US (8-12) - Made in Portugal * The Messerschmitt Bf 109 is a German World War II fighter aircraft that was the backbone of the Luftwaffe's fighter force.The Bf 109 first saw operational service in 1937 during the Spanish Civil War and was still in service at the dawn of the jet age at the end of World War II in 1945. It was designed by Willy Messerschmitt and Robert Lusser who worked at Bayerische Flugzeugwerke during the early to mid-1930s. 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.