How COOL are these Masai-warrior inspired shoes? Just looking at them makes me feel more comfortable. Based on "Masai Barefoot Technology", the shoes, Swiss shoe designer Karl Müller may be radically challenging the future of shoes with his appealing 'physiological footwear' approach drawn from years of research of Masai and Korean warrior feet and walking (on very hard uncomfortable ground). More than a million pairs are sold each year... is it an ingenious idea supported by a brilliant marketing team or an authentic innovation? We're off to the shops and we'll let you know.