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