The TRAILFLY ULTRA G 300 MAX is a revolutionary trail shoe featuring the world&&';;s first Graphene-enhanced foam, called G-FLY. The foam delivers 25% greater energy return and retains its optimum levels of underfoot rebound and comfort for longer, so runners feel faster and fresher over greater distances. Pioneering a new way for cushioned ultra running shoes, the TRAILFLY ULTRA G 300 MAX also features a unique underfoot ADAPTER-FLEX groove, allowing it to adapt and react to the terrain like no other. And that&&';;s not all. GRAPHENE-GRIP rubber delivers the world&&';;s toughest grip, while the supportive upper fit adapts to the natural changes of the foot when running big miles. It&&';;s time to defy the limits of your long run in the shoe awarded INNOVATION OF THE YEAR by Trail Running magazine. "A dream for long-distance trail runners" - Runner&&';;s World UK, who named in BEST TRAIL SHOE in their 2021 Gear Awards "Great trail tech. 92%. Gear of the Year" - 220 Triathlon (January 2022 issue) "We&&';;ve been signing from the hilltops about the exceptional cushioning" - Women&&';;s Running UK, who named it BEST TRAIL SHOE in their 2021 Awar Technical Specification: a Fit Scale 5 a Drop 6mm a Footbed 6mm Boomerang a Lug Depth 4mm a Use Hard and Rocky, Paths and Trails, Road a Midsole Stack 25mm heel / 19mm forefoot a Shank DFB a Sole Compound GRAPHENE GRIP a Product Weight 300g