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