The Inov-8 team expand the graphene range infusing it in the midsole to give benefits to the runner with 25% return in energy. Davy takes them out to see what they are made of on the trail. Inov-8 have also used the same G Fly technology in a new hiking boot, Rocfly G 390 Hiking boot, read the full article to find out more. https://myoutdoors.co.uk/gear-news/in... We hope you found the review valuable. Inov-8 Trailfly Ultra G 300 Max https://www.inov-8.com/trailfly-ultra... MyOutdoors Instagram: / myoutdoors Twitter: / myoutdoors Facebook: / myoutdoorsuk Davy Wright Instagram: / davywa Twitter: / davywa Transparency Notice: Please note that MyOutdoors receives free products for reviews from brands and manufacturers, but we only accept products for review on condition of total independence and no guarantee of endorsement. #trailrunning #inov8 #graphene