Features of the Merrell Women's Range Laceless AC+ Shoe 3-D stretch knit Uppers Synthetic microfiber lining Heel pull tab for easy on and off Kinetic Fit Base removable contoured insole for flexible support Merrell Air Cushion+ heel to toe comfort in this air-ride system with strategically placed lugs for the ultimate lightweight cushion M-Select ICE GRIP maximizes traction in Snow, slush, and ice with specialized designs Slippery, and slick surfaces to reduce slipping Improves overall comfort of a shoe by placing an impact-absorbing Pod under the heel Pliable material lessens impact during heel strike, and helps Cradle the heel to maintain