Nidecker Index APX Snowboard Boot Black 2027
The Index APX is Nidecker's most advanced and stiffest snowboard boot, engineered for riders who demand peak performance. Featuring a mountaineering-inspired full-length Storm Cover, it provides unmatched shell protection and structural rigidity from heel to toe. Combined with the next-generation BOA® H5 Coiler and H5 Dial system, this boot delivers precise, on-the-fly micro-adjustability in either direction for a locked-in, custom fit every run.
Underfoot, the Vibram® Approach 2.0 outsole sets a new benchmark in grip and speed entry, while the Gold heat-moldable liner wraps your foot in a fully personalized fit. With technologies like Armor-Tech, Exo Spine, and a 3D Molded Tongue, the Index APX transfers power with exceptional efficiency across resort, powder, and demanding backcountry lines.
- Dual BOA® H5 Coiler / H5 Dial closure for precise fit
- Full-length Storm Cover inspired by mountaineering design
- Vibram® Approach 2.0 outsole for next-level grip and fast entry
- Gold heat-moldable liner with Velcro liner closure
- Armor-Tech and Exo Spine for structural support
- 3D Molded Tongue and Space Blanket insulation
- 3D Summit insole for cushioning and energy return
Fast, Reliable Shipping
FREE SHIPPING OVER $99 🇨🇦 Canada Only
We ship fast worldwide. Most orders go out the same or next business day. You will get an order confirmation right away, followed by tracking as soon as it ships so you always know where your gear is.
Boot Size Conversion
Find your Mondo size, then match to US/UK sizes.
| Mondo (cm) | US Men's | US Women's | UK | EU |
|---|---|---|---|---|
| 22.0 | 4 | 5 | 3 | 35 |
| 23.0 | 5 | 6 | 4 | 36 |
| 24.0 | 6 | 7 | 5 | 37.5 |
| 25.0 | 7 | 8 | 6 | 39 |
| 25.5 | 7.5 | 8.5 | 6.5 | 39.5 |
| 26.0 | 8 | 9 | 7 | 40.5 |
| 26.5 | 8.5 | 9.5 | 7.5 | 41 |
| 27.0 | 9 | 10 | 8 | 42 |
| 27.5 | 9.5 | 10.5 | 8.5 | 42.5 |
| 28.0 | 10 | 11 | 9 | 43 |
| 28.5 | 10.5 | 11.5 | 9.5 | 44 |
| 29.0 | 11 | 12 | 10 | 45 |
| 29.5 | 11.5 | – | 10.5 | 45.5 |
| 30.0 | 12 | – | 11 | 46 |
| 31.0 | 13 | – | 12 | 47.5 |
| 32.0 | 14 | – | 13 | 49 |
How to Find Your Mondo Size
- 1 Stand on a piece of paper with your heel against a wall
- 2 Mark the tip of your longest toe on the paper
- 3 Measure from the wall to the mark in centimeters
- 4 This measurement is your Mondo size
About The Fit
Every boot has its own unique fit characteristics.
