Airtracks Master Pro FASTEC, XL
Rear-entry FASTEC, medium flex, M 38–41 / L 41–44 / XL 44–47
The only binding here that publishes what boot size each of its sizes takes.
Best for: A rider who is tired of sitting down in the snow to strap in
≈ €169
Strap, rear-entry or step-on — three ways in · review
NITRO One review
The only binding on the shelf whose flex figure comes with the scale it is measured on.
The bottom line The most readable specification on the shelf, on a listing that forgot to publish a size.
A flex figure that works
Flex: 6/10 — ideal für Anfänger bis Fortgeschrittene, die einen verspielten, surf-inspirierten Freestyle-Flex suchen.
A number, a denominator, and a sentence saying who it suits. Two other bindings on this shelf publish a 3 out of nothing.
The footbed
3° canted. The sole is tilted towards the centre of the board, so the knees sit in a more natural line. The listing sells it on comfort and long days rather than on performance.
The straps
- 3D OptiFrame ankle strap
- Over-grip toe strap, which fits over the toe cap or around it
The toe strap choice is the adjustment worth knowing about: over the cap pulls the boot back into the heel cup, around it pulls down.
Air damping
Air Dampening System, for landings and speed. No figure, and none is possible for a claim of this kind.
What is missing
The size range and the baseplate pattern — the two lines that decide whether a binding can be bought at all.
Availability
One check, 258 € at the bottom and 269 € at the top, across the German and Spanish Amazon shops.
Outside the euro, the British Amazon shop sells it in its own currency, and the range above is kept clear of that.
On the shelf, off the market: the American, French and Italian Amazon shops carry the reference with no seller attached to it.
Figures pulled from Keepa the day this page was last revised. Stock and prices move without notice.
Prices quoted in this text were read on 28 September 2026. The live price is at the top of the page.
The declared figures, and where they run out
Strengths
- Publishes its flex as 6 out of 10 — the only figure on this shelf that can actually be read
- A 3° canted footbed, which tilts the sole towards the board’s centre and is rarely stated at this price
- Says who it is for: beginner to intermediate, wanting a playful freestyle flex
Compromises
- No size range at all — not even a letter
- No baseplate pattern, so the board question is unanswered
- Unpriced in three of the six stores, and 268.56 € in Germany against 257.93 € in Spain
The two closest on price
Same category, nearest budget — what else the same money buys.
Specifications
| Entry system | Strap, with a 3D OptiFrame ankle strap and an over-grip toe strap |
|---|---|
| Size range | Not published |
| Highback | Not published separately; flex stated as 6 out of 10 |
| Baseplate pattern | Not published |
| Disc supplied | Not published |
| Adjustment | The toe strap fits over the toe cap or around it |
| Weight per pair | Not published |
| Amazon reference | B0DW5FY5WK (one reference across 6 Amazon marketplaces) |
| EAN | 7630349310695 |
Questions asked about this one
What does a 3° canted footbed do?
It tilts the foot slightly towards the middle of the board, which puts the knees in a more natural line. The listing frames it as comfort over a long day rather than performance, which is the honest way to sell it.
What does 6/10 mean against the other flex numbers here?
It means this one can be read and the others cannot. Two bindings on this shelf state a bare 3 with no denominator. A 6 out of 10 is a middle flex, and the listing says so in words as well.
Which size should I order?
The listing does not say, in any scale. That is the gap on this one, and it is the same gap five other listings on this shelf have.
Who this one is for
A rider between beginner and intermediate who wants a middle flex and knows it
If this one is not the right fit
- On a tighter budget: Bataleon BA.23.23.MI.M.BK, at 72 £ in the same category. see the review
Value for money
At 263 £, it sits +11 % against the 238 £ median of the 8 models in this category published here.
Price and availability
A reference exists on these Amazon stores: France, Germany, Italy, Spain, United Kingdom, United States. Listed is not the same as in stock — availability changes daily.
Details checked on September 28, 2026.
Sources
Specifications: manufacturer sheet and Amazon product page. Prices and availability: Keepa. No product on this site has been physically tested.
The rest of this shelf
Bataleon Minishred, size M
Children’s binding, flex 3 on an unstated scale, size M
A child’s binding sold in three lines, one of which is a flex figure with no scale behind it.
Best for: A child already riding the maker’s own board
≈ $72 / €105
Burton Step On Re:Flex, size L
Step-on system, size L; the listing publishes five database fields
A binding that only works with boots built for it, sold with five bullet points that never mention that.
Best for: A rider who already owns, or is buying, the matching step-on boots
≈ £238 / €230
