Men's barefoot training shoes Xero Shoes Nexus Knit - light and flexible shoes with a breathable 3D knit upper. These barefoot sneakers from Xero Shoes have a wider toe that allows the toes to spread and relax. * upper material: synthetic/textile * breathable upper made of 3D knit * light and flexible sneakers * weight: 260.8 g (for size 42) * wider toe allows to spread and relax the toes * removable breathable insole * foam midsole * non-raised heel with zero drop ensures proper posture * FeelTrue™ sole - provides lightweight protection and traction while allowing you to feel connected to the ground as you move * loop at the back for easier slip on * sandals, trainers, sports trainers