French architect Jean Nouvel unveiled a pair of leather and rubber boots for Italian shoe brand Ruco Line at the Interni Hybrid Architecture and Design exhibition in Milan. Jean Nouvel's Pure footwear for Ruco Line reduces the concept of a shoe to its purest form, according to the architect. The boots have chunky rubber soles and calf leather uppers with a stretchy Lycra lining inside. The name of the design is printed in abbreviated form – NVL PR 13 – on the top of the boot alongside a serial number, making each pair unique. They come in white, black, fluorescent yellow and fuchsia and are sold in translucent plastic bags.