Materials – HyperRev up front and Foamposite in the back… thats pretty much what they remind me of. I love mesh and the freedom/ mobility it offers the wearer, however, you lose support when mesh is used from heel to toe. This is where blending the two materials works really well together. With the Foamposite heel, you received structure and support where you need it most while the mesh forefoot offers a pain-free and mobile experience. Only thing you can complain about would be the mesh and how it lacks durability… but it’s some comfortable that I’d still prefer this over Fuse any day of the week.