The Inov8 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. Product Info for Inov-8 TrailFly Ultra G 300 Max Shoes - Women's. 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 TLDR: A real-workhorse of the trail running world, the Inov-8 Trailfly Ultra G 300 Max (click on link to bring you to Inov-8’s official website for full details) has managed to straddle the “goldilocks” (meant in a positive way) of cushioning – not too soft and not too hard. The traction and stability departments are where it truly shines. Shop high performance inov-8 trail running, gym & walking gear. F-Lite G 300 Women's TrailFly Ultra G 280 Men's A cushioned trail shoe is new for inov-8 and the Trailfly Ultra G 300 Max has what is known as 'Adapter-Flex' technology "to adapt and react to uneven terrain". Michael Price, COO of British-born inov-8, said: “G-Fly cushioned foam not only gives runners incredible, long-lasting energy return but an underfoot feel free of rigidity and full of INOV-8 INTRODUCE A NEW PHENOM TO THE ULTRA RUNNING SCENE IN THE TRAILFLY G 300 MAX TRAIL SHOES, THE FIRST SHOES TO BE INJECTED WITH GRAPHENE DIRECTLY INTO THE FOAM - BUT HOW DO THEY HOLD UP? Inov-8 continue to make emphatic strides into the world of ultra-running. The Inov8 TrailFly Ultra G 300 Max is an excellent long-distance trail shoe. It has a great fit, excellent grip, and really protects your feet on long arduous trails. That said, for the runs I’ve been doing (5-20k over steep rocky trails in Spain), I still have a slight preference for my Salamon Supercross trainers. A revolutionary trail shoe, featuring the world's first Graphene-enhance foam, G-FLY, the new Trailfly Ultra G 300 Max are a definite must-have. Inov8 Shoe Fit Scale. For technical footwear, a good fit is essential to enhance your performance. Inov8's new Shoe Fit Scale makes it easier to find the perfect fitting shoe. 3lG18.