The new Ravenna 10 uses Brooks GuideRails Holistic Support System which keeps you moving comfortably by keepiing excess movement in check. The BioMoGo DNA midsole cushioning and rebounding rubber create a springy feel underfoot. The Midfoot Transition Zone is shaped to go from heel to toe qickly. With additional structure around the arch with a secure fit and breathable mesh upper your gonna love the latest version of your old favorite.