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Our most cushioned trail running shoe, making it perfect for all distances up to ultramarathons. A deep wedge of lightweight FLYSPEED nitrogen-infused foam gives a plush, springy underfoot feel. This works in tandem with a unique groove built within the bottom of the shoe that allows it to flex and mould to the trail for amazing ground control.
Weighing just 280g, with an 8mm drop, the TRAILFLY ULTRA G 280 is perfect for runners of all abilities. It serves up confidence-boosting grip through mega-tough 4mm rubber studs infused with the world’s strongest material (Graphene) and, thanks to a wide-fit toe-box and highly breathable upper, the all-day comfort needed to go long.
Since launching, the shoe has won multiple awards across the world and has the proven adaptability to be used by runners seeking to flow across trails, parks, paths and roads. But don’t just take our word for it. Influential running review site RoadTrailRun scored it 9.4/10, while big-hitting magazine Outside named it ‘BEST FOR MULTI-TERRAIN RUNS’ following a giant test of 85 different running shoes.
Award Winning
Training
Ultra
Cushioning Maximum
Hard Trail
Road
Nitrogen is a gas. We’ve infused it with our base midsole foam to create this new type of foam, which we’ve called FLYSPEED. The foam is made using a supercritical foaming process, which is an innovative way of making midsole foams.
This process involves infusing either carbon dioxide or nitrogen gas with a base foam to create a mix. We’ve chosen to use nitrogen gas, which is less common, more premium and creates a foam with greater durability.
Yes, it is very safe and made by experts in the field.
All midsole foams are made using blends of materials, with chemicals added. Using nitrogen gas considerably reduces the need to use chemicals and energy in the manufacturing process. Instead, nitrogen naturally expands in bubbles to form the midsole (instead of the chemicals you’d otherwise add), giving an estimated 50% energy saving during the expansion phase. Any surplus gas is recovered and re-used.
All foam mixes are different, and our exact mix will remain top secret.
It’s also worth adding that the factory where FLYSPEED is made is moving to 100% sustainable-use energy and, in the future, will not use any from the grid.
The midsole foam is very light, thanks to the use of nitrogen versus chemicals. It also has incredible rebound and is our softest foam to date. Testers told us it makes them feel like they’re flying fast, hence the name FLYSPEED.
A harder foam will usually increase rebound but in turn make it feel stiffer underfoot. A foam that is very soft will sap energy away rather than rebounding. FLYSPEED foam with nitrogen delivers rebound AND a soft feel.
We are constantly striving to offer the best possible options for trail and ultra runners and wanted to experiment with a nitrogen-infused foam. We wanted to give runners a ride that had more of a plush feeling plus incredible energy return, and working with nitrogen for the first time allowed us to do this.
The new FLYSPEED midsole foam is lighter and softer. This lightness is reflected in the overall weight of the shoe (a 280g average across the size curve versus 300g in the TRAILFLY ULTRA G 300 MAX).
Using Graphene in G-FLY foam means that foam utilises the powers of the world’s strongest material, thus making it our most durable.
In terms of energy return, FLYSPEED foam gives back close to 80% of the energy you put in. Nitrogen-infused foams are helping athletes break records around the world and have proven benefits to runners of all abilities.
270: For more speed. Features: POWERFLOW MAX foam and Graphene-Grip rubber.280: For more bounce. Features: FLYSPEED foam and Graphene-Grip rubber.300: For more protection. Features: G-FLY foam and Graphene-Grip rubber.
The 270 is the lightest, has a zero-drop, and the smallest stack height. The foot sits closer to the ground.
The 300 has the most protection, a 6mm drop, and the largest stack height. The foot sits further from the ground.
The 280 sits in between the 270 and the 300 in terms of its weight and stack height. It has an 8mm drop.
Both the 280 and 300 feature our ADAPTER-FLEX technology. This groove cut upwards into the midsole increases flexibility underfoot, something often found lacking in more cushioned footwear. The 270 does not require this technology as the foot already sits closer to the ground with an optimum level of flexibility offered.
*Find Out More: EXPLAINING THE TRAILFLY RUNNING SHOE RANGE
As proven with the 270 and 300, our TRAILFLY shoes work brilliantly over all distances. The 280 is no different. Although designed to ensure a runner can go long distances with all the performance benefits required to do so, the 280 will happily speed you over shorter trail runs too.
The TRAILFLY ULTRA G 280 fits very similar to the TRAILFLY G 270 and TRAILFLY ULTRA G 300 MAX and the sizing is consistent. If in doubt versus other models or brands, we advise to go up half a size. Check out our size guide.
The TRAILFLY ULTRA G 280 is a 5 on our 1-5 width scale (5 being the widest). This measurement is taken across the toe-box of the shoe. Check out our width scale.
The BOOMERANG footbed is in the 270 and 300 shoes, but we opted for a standard footbed in the 280 because the shoe already possesses high levels of comfort and bounce, thanks to the new FLYSPEED midsole. A runner seeking even more, could easily add the interchangeable – and slightly heavier – BOOMERANG footbed.
No, they do not replace them. The Trailfly Ultra G 280 is a new style added to our Ultra Running range and does not replace any of the existing designs.
The Trailfly Ultra G 280 has an 8 mm drop, so is not replacing our popular zero drop Trailfly G 270s.