Birkenstock Arizona Birko-Flor Nubuck Narrow Fit SandalWith a history too deep to go into (throwback to Germany, 1770s), Birkenstock is one of the world's top footwear brands with industry-renowned expertise in how our bodies walk. They have a whole bunch of signature tech which is disguised in a good old-fashioned hardy sandal, and they're built to a massive standard of quality.Birkenstock's Arizona silhouette is a two-strapped standard, in this case featuring an upper made from a Birko-Flor upper backed by a smooth suede for a soft touch to the skin. The two straps are attached with metallic buckles which are embossed with logos, and the sandals have an outsole made from a durable EVA which is grippy and shock-absorbant.Birkenstock's finest component is easily the footbed, made from a durable cork which over time moulds to your foot. In the meantime, however, the bed features a deep heel which holds your foot firmly in the natural position, and a heel mould which activates your calf muscles. The midfoot is raised with arch support to provide you with natural stability and it has a toe grip for an enhanced fit. Around the footbed is raised for protection from the ground when walking.Birko-Flor upperOrthopaedic footbedBuckled strapsEVA tread Birkenstock Womens Arizona Birko-Flor Narrow Fit Sandals Black