Synthetic-and-meshImportedSurface: Road. Differential: 12mm. Engineer mesh upper with 3D Print synthetic overlays offers a secure fit while providing easy flexibility. GORE-Tex? waterproof membrane keeps out the wet elements while providing a drier and more breathable foot environment. Traditional lace-up closure. Plush tongue and collar. Soft fabric lining for a great in-shoe feel. Removable foam insole for excellent underfoot comfort and support. BioMoGo DNA is a blend of earth-friendly BioMoGo and responsive BrEven on rainy days and puddle-filled streets, you will still get a smooth ride with the easy flexibility, long-lasting durability, and reliable outsole grip of the Brooks? Ghost 12 GTX? running shoes.Predecessor: Ghost 11 GTX.Support Type: Neutral.Cushioning: High energizing cushioning.