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 in the shoe awarded INNOVATION OF THE YEAR by Trail Running magazine.
Drop: 6mm
Lug Depth: 4mm
Stack Height: 25mm heel / 19mm forefoot
Weight: 300g (1/2 pair)
Intended Use: Hard and Rocky, Paths and Trails, Road
Inov-8 Footwear Sizing Chart
UK Size | EU Size | US Size (Men’s) |
US Size (Women’s) |
---|---|---|---|
1 | 33 | 2 | 3.5 |
2 | 34.5 | 3 | 4.5 |
3 | 35.5 | 4 | 5.5 |
3.5 | 36 | 4.5 | 6 |
4 | 37 | 5 | 6.5 |
4.5 | 37.5 | 5.5 | 7 |
5 | 38 | 6 | 7.5 |
5.5 | 38.5 | 6.5 | 8 |
6 | 39.5 | 7 | 8.5 |
6.5 | 40 | 7.5 | 9 |
7 | 40.5 | 8 | 9.5 |
7.5 | 41.5 | 8.5 | 10 |
8 | 42 | 9 | 10.5 |
8.5 | 42.5 | 9.5 | 11 |
9 | 43 | 10 | 11.5 |
9.5 | 44 | 10.5 | - |
10 | 44.5 | 11 | - |
10.5 | 45 | 11.5 | - |
11 | 45.5 | 12 | - |
11.5 | 46.5 | 12.5 | - |
12 | 47 | 13 | - |
13 | 48 | 14 | - |
14 | 50 | 15 | - |
Free delivery on all Australian orders over $69.
Upgrade to Express Delivery for $10 on all orders over $69.
Standard Delivery | |
---|---|
Order Value | Postage Cost |
Under $69 | $10 |
$69+ | FREE |
Express Delivery | |
---|---|
Order Value | Postage Cost |
Under $69 | $20 |
$69+ | $10 |
All our deliveries are made with Australia Post's carbon neutral parcel delivery service. Read our full delivery information.
Returns, Exchanges and Refunds
See our full returns policy.2024 Christmas Delivery
Delivery to: | Standard | Express |
Australia (excl. WA and NT) | 18th December | 21st December |
WA | 15th December | 20th December |
NT | 14th December | 20th December |
These dates are provided by Australia Post, and are outlines for delivery to Metro areas. For rural deliveries, please allow additional time.
Shop With The Trail Running Experts

Your purchases give back
We donate 1% of our gross sales to approved environmental non-profit organisations, every year.
Help From
The Experts
Our team are knowledgeable and friendly. Visit us in-store or call us for help.
Carbon Neutral Shipping
FREE on orders over $69.