Mesh and TPU upper with a traditional lace closure for secure fit. Hyperlock TPU film heel counter adds extra security. M Select FRESH agents are used to reduce shoe odor. Breathable mesh lining keeps feet cool. Integrated insole for added comfort. Merrell Barefoot 2 construction enhances proprioception and stability during movement. TrailProtect rock plate protects feet from debris. Vibram TC5+ for durable traction. Stack height: 11.5/11.5mm heel/toe. Insole thickness: 0mm and 3mm. Midsole thickness: 4/4mm. Sole thickness: 1.5mm web, 3mm lug. Weighs 6oz / 170g (1/2 pair). The Trail Glove 5 is a barefoot shoe designed for natural foot movement. Compared to the Trail Glove 4, it runs ½ size larger. To achieve a similar fit to the previous version, we recommend ordering a ½ size smaller than your usual size.