100% NUBUCK LEATHER UPPER:Premium nubuck leather upper for every day style ROOMY TOE BOX Wide:Toe boxes help your toes splay in their natural position for barefoot comfort BREATHABLE Breathable mesh lining and funched leather ACTIVE ORTHOLITE INSOLE:With 5mm punched EVA for comfort and breathable under the insole Zero-drop from heel to toe PROTECTIVE TOE CAP RUBBER SOLE:Rubber outsole with protective toe cap provides added durability and improved grip on wet and dry surfaces MINIMALIST WEIGHT AND PACK SIZE：280g for US9, it always finds space in backpack and bag. He can be rolled and fixed with the laces to a bundle. XPETI barefoot shoes are designed to mimic the shape of the human foot, they are wide, thin and flexible, which as close to barefoot as possible. They promote your foot's natural strength and movement The XPETI Zen barefoot shoes builded with 100% nubuck leather upper for every day style, offer maximum lightweight performance for training on the trail and at the gym. the barefoot sneaker sits like a sock on the foot