Did you know you actually have three arches Merrell knows and they put the knowledge to good use engineering shoes like the Womens Siren Edge Q2 Hikers. Multiple technologies work together to match the way you move, offering support, alignment and gender-specific stability. Mesh and synthetic uppers feature M Select FRESH to fight odor and traditional lace closure for a locked-in fit. Kinetic Fit Tri removable contoured insoles provide lightweight support for all three arches of the foot. Molded nylon arch shanks add another layer of support. Engineered specifically for women, Q FORM 2 insole and midsole technology ensures natural alignment and superior hiking comfort. M Select GRIP outsoles feature a 4.5mm lug depth to maximize step-stabilizing traction. Imported. Womens sizes: 6-10 medium width. Half sizes to 10. Colors: Black, Vapor. Cancer and Reproductive Harm- www.P65Warnings.ca.gov.