The Nike Free Metcon 3 ‘Grey Fog Obsidian’ features a hybrid midsole that combines a flexible Nike Free forefoot with the signature flat and wide Metcon heel for added stability. Up top, the lightweight build utilizes breathable grey mesh construction with no-sew overlays for targeted support, along with interior heel padding for a comfortable, secure fit. Interior cables are integrated into the laces for lockdown in and around the mid foot.