Size 38 Barefoot Sierra Boot - Red RhombusBarefoot Sierra Boots All of our shoes are one of a kind. If this is not your size, please refer to our other listings for shoes in your size. About our Barefoot Sierra Boots. Our Barefoot Sierra Boots are handmade by an Indigenous Guatemalan family of shoe makers with three generations of experience. The soles are flexible reclaimed car tyres, providing a soft but sturdy tread. The Barefoot edition offers you a wider toe box for landing your foot in