They're the original choice for "Stocks & Socks" up here in New England. Size 36 translates to US 5-5.5, however I wear a US 6 in sandals and these fit well. Very lightly worn classic two-strap design from BIRKENSTOCK - the Arizona. Iconic style with the signature comfort of the BIRKENSTOCK footbed. Featured in genuine high-quality suede – this is an extra cozy version thanks to a soft, bright genuine shearling lining on the anatomically formed cork-latex footbed and straps. These sandals are perfect for chilly, winter evenings. The shearling is slightly compressed from wearing them around the house. Anatomically shaped cork-latex footbed: Suede upper; Footbed lining genuine shearling; sole EVA. Details: two straps, each with an adjustable metal pin buckle. Made in Germany.