evo.com | Merrell Shoes > Breathable mesh and 3D-printed TPU keep the upper of the Merrell Siren Edge 3 Shoes light and ventilated, while a Merrell-exclusive Vibram TC5+ outsole and Kinetic Fit TRI insole add stability and arch support across long days on the trail. Breathable Mesh Lining Molded Nylon Arch Shank Vegan-Friendly Merrell Air Cushion Heel Absorbs shock and adds stability. Breathable Mesh, Synthetic and TPU Upper | Women's Merrell Siren Edge 3 Shoes 2026 - 10.5 Gray | Nylon