These Merrell Women’s Vapor Glove 4 Laced Running Trainers are sure to impress you with their comfortability. Their upper is made of 3D knit fabric that provide an ultimate sock-like fit. The breathable mesh lining allows air ventilation for a fresh feeling all day long. Due to their Merrell Barefoot 2 construction they offer an enhanced stability during variable movements., 3D knit upper for 360-degree sock-like fit. Traditional lace closure., Hyperlock TPU film heel counter for security. M Select FRESH antimicrobial agents reduces shoe odor., Breathable mesh lining . Integrated footbed ., Molded nylon arch shank. Merrell Barefoot 2 construction for enhanced proprioception and stability during variable movement., Vibram TC5+. Stack Height (heel/toe): 6.5/6.5mm; footbed: 0mm; insole: 3mm; midsole: 0/0mm; sole: 1.5mm web 2mm lug.