Boreal Ninja
Boreal
The Ninja is a medium-soft, aggressively downturned slipper shoe from Boreal for sport climbing and bouldering. Boreal lists it as medium-width with a narrow heel. In stock at 8 shops from 59.46 EUR.
Slip-lasted competition slipper with aggressive downturn and elasticated tongue closure. Anti-deformation half midsole balances stiffness on micro-edges with softness on smears. 4mm Zenith Ultra rubber - Boreal's stickiest compound - excels on overhangs, sport, and gym bouldering. Microfiber upper with Wrap Rand surrounding the foot for support and shape retention.
Best For
Best for sport climbing and bouldering on slab, vertical and overhang terrain. Aimed at intermediate to advanced climbers.
Among the 469 adult climbing shoes we track, the Ninja ranks in the top 1% for hooking, the top 11% for pocket climbing and the top 19% for smearing.
Strengths & Trade-offs
Ninja strengths
- Hits the sweet spot between performance and wearability
- Rubber splits the difference between sticky and durable
- Resoleable construction for long-term value
Ninja trade-offs
- Aggressive fit is punishing for newer climbers
How the Ninja fits
True to size with minimal stretching expected.
Fit profile: medium width, standard forefoot volume, narrow heel, suits egyptian toe shapes.
No stretch expected; minimal break-in.
How it fit climbers with your foot shape: fit reports from feet like yours.
Ninja fit reports
3 scanned owners have reported how this shoe fits so far - not enough yet for a fit fingerprint; verdicts unlock at 5 owners. The reports come from climbers who measured their feet with the climbing-gear.com foot scanner and rated the fit of the shoes they own.
Stiffness
Measured stiffness: 0.37 on our 0-1 scale (0 = softest). Among aggressive shoes it sits between the La Sportiva Skwama (0.33, softer) and the La Sportiva Solution (0.43, stiffer).
Ninja specifications
| Brand | Boreal |
| Model | Ninja |
| Closure | Slipper |
| Downturn | Aggressive |
| Asymmetry | Strong |
| Toe Patch | Full |
| Heel Rubber | Full |
| Ankle Protection | None |
| Midsole | Forefoot |
| Midsole Stiffness | Medium soft |
| Rand | Tensioned |
| Upper Material | Synthetic |
| Weight (pair) | 440 g (15.5 oz) |
| Break-in | Minimal |
| Rubber | Zenith Ultra |
| Rubber Thickness | 4mm |
| Rubber Hardness | Soft |
| Durability | Moderate, High |
| Vegan | Yes |
| Resoleable | Yes |
| Kids | No |
What the Ninja costs
Prices checked 15 Oct 2026 across 8 shops that currently stock it (59.46 to 107.50 EUR). Cheapest current offer: 59.46 EUR at walashop.com, 50% below the 119.95 EUR list price.
| Retailer | Price |
|---|---|
| walashop.com | 59.46 EUR |
| barrabes.com | 63.00 EUR |
| outdoor-climbing.de | 85.00 EUR |
| bergfreunde.de | 89.96 EUR |
| blackisard.com | 91.31 EUR |
| climbingzone.es | 92.97 EUR |
| bananafingers.co.uk | 106.53 EUR |
| bergzeit.de | 107.50 EUR |
Prices by size
Cheapest in-stock price per EU size and how many shops list that size, from the EU pool. Updated daily.
| EU size | From | Shops |
|---|---|---|
| 28 | 59.46 EUR | 1 |
| 30 | 59.46 EUR | 1 |
| 32 | 59.46 EUR | 1 |
| 34 | 59.46 EUR | 1 |
| 35 | 63.00 EUR | 1 |
| 36 | 59.46 EUR | 1 |
| 37 | 89.95 EUR | 3 |
| 37.5 | 107.50 EUR | 1 |
| 38 | 59.46 EUR | 4 |
| 38.5 | 89.96 EUR | 3 |
| 39 | 89.95 EUR | 2 |
| 39.5 | 89.96 EUR | 3 |
| 40 | 89.95 EUR | 6 |
| 40.5 | 89.96 EUR | 3 |
| 41.5 | 107.50 EUR | 1 |
| 42 | 106.53 EUR | 2 |
| 42.5 | 106.53 EUR | 2 |
| 43 | 107.50 EUR | 1 |
| 44 | 92.97 EUR | 3 |
| 44.5 | 85.00 EUR | 5 |
| 45 | 89.95 EUR | 1 |
| 46 | 89.95 EUR | 4 |
| 46.5 | 89.95 EUR | 3 |
| 47 | 92.97 EUR | 2 |
Similar Climbing Shoes
- Butora Acro
- Mad Rock D2.ONE HV
- Boreal Mutant 3.0
- Boreal Dharma Women's
- La Sportiva Ondra Comp
- Ocun Diamond S
Prices, stock and owner fit data on this page update daily. You are welcome to cite these figures if you name climbing-gear.com and link to this page - see our data terms.