Inov-8 say: "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 trail traction, 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."
Graphene-enhanced rubber delivers the world’s toughest grip – insane sticky traction AND increased durability, no compromise. 50% stronger, 50% more elastic, 50% harder wearing, scientifically proven.
35 multi-directional 4mm deep lugs on each shoe have been meticulously shaped and positioned to improve both propulsion at the front and braking at the rear.
Measured spacing between the lugs prevents debris from sticking to the outsole, while water dispersion channels and rubber dimples give extra grip on slick surfaces.
Vertical grooves cut into the rubber allow the foot’s metatarsal bones to move more independently, aiding adaptability and flexible grip when running over uneven terrain.
MIDSOLE & INSOLE
Graphene-enhanced G-FLY cushioned foam is more resistant to wear. It retains its thickness and optimum levels of snappy energy return for longer, helping runners feel faster and fresher over greater distances. Incredible energy return AND increased durability, no compromise.
The new foam gives 25% more energy return. Laboratory tests show that even when the foam is aged to mimic extensive use, it still delivers more energy return than some unaged foams. Athletes testing the foam said it was still performing well after 1,200km – double the industry standard.
Stack heights (midsole & outsole combined) of 30mm in the heel and 24mm in the forefoot, make this our most cushioned shoe ever. A 6mm drop (heel to toe differential) hits the sweet spot for long-distance comfort.
A revolutionary 10mm deep ADAPTER-FLEX groove makes this the only max cushioned shoe that adapts, reacts and moulds to uneven terrain for a responsive ride. It frees the stacked midsole of rigidity and works in tandem with the foot’s midtarsal joint to increase flex and mobility.
BOOMERANG insole features hundreds of expanded TPU beads that compress and spring back for 40% more energy return – and greater cushioning – than standard insoles. Retains its 6mm thickness and optimum performance level for longer, while wicking away unwanted moisture.
ADAPTER-FIT technology delivers a supportive fit that adjusts to the natural movements and swelling of the foot when running long distances. Lightweight, breathable air mesh materials further aid a soft, natural feel without compromising on durability.
A wide toe-box (grade 5 on our 1-5 fit scale) and lightweight racer tongue enhance the overall comfort, while a double-layered toe guard increases protection against rocky terrain. The tongue is also gusseted to keep debris out of the shoe.
FREE 3-5 Day Royal Mail UK Delivery
1-2 Days Royal Mail for Only £2.99
Faster Options Available
Postage charges start at £15 for Europe and £18 for the rest of the world. Royal Mail Air Sure and DHL Express will require a signature.
The prices on our website do not include any local taxes that may be due on delivery to countries outside of the UK. These charges vary from country to country depending on the value of the goods shipped.
Full Delivery Details
UK (incl. Channel Islands): Free 3-5 Days Royal Mail
Dispatched the same day if placed before midday Mon-Fri, the majority of orders are sent Royal Mail 2nd Class Post, except for bulky or heavier items, which may be with a different service.
UK (incl. Channel Islands): Faster Options
- 1-2 Days Royal Mail First Class (or courier for bulky items) usually next day when ordered before midday but quote is 1-2 days: £2.99
- Next Business Day Interlink Express (excludes Scottish Island, Highlands and weekends) : £5.99 (Ts & Cs below)
The Next Day delivery postage option guarantees next day delivery as long as we have the order before midday Monday to Friday. We cannot dispatch on a Saturday so orders received after 1pm on a Friday would leave in Mondays post bag for delivery on Tuesday. There is also no guaranteed next day delivery on a Saturday so Next Day Delivery orders dispatched on a Friday may not be delivered until Monday. In most cases a 1st Class post order shipped on Friday will be delivered on a Saturday. The delivery must be signed for on receipt. Items shipped using this delivery method are easier to trace if they go missing in the post.
You have a right to cancel your order for any item purchased through our website with or without reason, under the distance selling regulations for refund. If you are unhappy with your purchase items can be returned in an unused resellable condition for replacement or refund within 14 days.
We advise customers to try the shoes in the house for approximately one or two hours to make sure you are happy with the fit. If you are not happy with the fit when trying the shoes indoors, please return them to us and we will either refund or exchange. We are unable to accept returned shoes that have been worn outdoors, unless there is a manufacturing fault or defect with the shoe.
(Items bought as Christmas presents that where purchased online over 30 days before Christmas can be returned for an exchange upto the 21st January)
Our returns address is:
52, Low Friar Street,
Tyne and Wear.
Faulty returns must be sent back for inspection before a refund will be issued. If the product is found to have a defect you will be offered a refund or exchange (if available). Refunds will ONLY be given for damaged goods where no replacement product can be supplied. Damage due to normal wear and tear, misuse, alteration to the product, or negligence is not covered under our returns policy and refund will not be given.
Returned goods must be adequately sealed in original packaging. On returning items the original packaging should also be returned undamaged and as received. This must be wrapped in an extra outer layer. Failure to do so could result in only a partial refund being issued.
SUSPECTED FAULTY SHOES SHOULD BE RETURNED CLEAN AND DRY. Shoes that come back to us in a state unfit for our staff to inspect will be kept at our premises until you can arrange for them to be picked up or until you have paid the postage to return the item to you. Please note this is a health and safety issue we take seriously.
Please ensure you ask for a certificate of posting as proof you have sent the package. You are responsible for the item until we receive it therefore we suggest you return the parcel using Royal Mail Recorded (Signed For) Delivery or similar. We will not refund the postage paid by the customer on unwanted returned items or sizing issues (so please contact us regarding sizing prior to ordering if you are unsure).
Goods purchased online cannot be returned to the shop.
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The privacy of our online and offline customers is extremely important to us. We only use the information we collect about you lawfully, in accordance with the Data Protection Act 1998.
We collect chosen personal information about you (name, address, telephone number, email) when you join our email list or mailing list.