Boreal Ninja
Boreal
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.
Strengths & Trade-offs
Strengths
- Hits the sweet spot between performance and wearability
- Rubber splits the difference between sticky and durable
- Resoleable construction for long-term value
Trade-offs
- Aggressive fit is punishing for newer climbers
Sizing & Fit
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.
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).
Specifications
| Brand | Boreal |
| Model | Ninja |
| Closure | Slipper |
| Downturn | Aggressive |
| Asymmetry | Strong |
| Rubber | Zenith Ultra |
| Rubber Thickness | 4mm |
| Weight (pair) | 440g |
| Vegan | Yes |
| Kids | No |
Prices
| Retailer | Price |
|---|---|
| barrabes.com | 63.00 EUR |
| walashop.com | 69.95 EUR |
| bergfreunde.de | 83.97 EUR |
| outdoor-climbing.de | 85.00 EUR |
| climbingzone.es | 92.97 EUR |
| epictv.com | 99.90 EUR |
| oliunid.de | 99.90 EUR |
| oliunid.es | 99.90 EUR |
| oliunid.fr | 99.90 EUR |
| oliunid.it | 99.90 EUR |
| + 2 more retailers | |
Cheapest current offer: 63.00 EUR at barrabes.com, 47% below the 119.95 EUR list price. 12 shops currently stock it (63.00 to 119.95 EUR).