The original Boreal Ninja broke the mould for climbing shoes. The first ever slip lasted rock shoe, Ninja heralded a new style of lightweight, sensitive, high performance footwear. The latest incarnation of the benchmark shoe brings it bang up to date. With an aggressive downturned profile, super sticky Zenith Ultra rubber and simple elasticated closure, Ninja is ready to tackle the hardest climbs.
The highly downturned and asymmetric last shape cradles the foot and maximizes power at the toe. The innovative Wrap Rand™ surrounds and supports the foot, while the elasticated integrated tongue with central pull strap makes for easy fitting. The unlined synthetic upper ensures a comfortable feel. The rubber toe band provides outstanding friction and ensures minimal stretch.
The snug 3D moulded heel in outstanding Zenith Ultra™ rubber results in exceptional heel hooking ability, and the midsole provides an ideal balance between stiffness on micro edges, and softness on smears. Ninja provides high performance precision and power, with the convenience and comfort of a slipper.
|Weight|| 440 g|
Size 6 (UK) single : 220 g / 7.7 oz
UK sizes 4-12, including half sizes.|
|Best Use (Highest Performance)||
Trad / Crack|
Sport / Face
|Tongue Details||not provided by the brand|
|Last Details|| Shape: Downturned (performance)|
Construction: Slip Lasted
not provided by the brand
|Upper Material||not provided by the brand Microfibre|
|Midsole Material||not provided by the brand Special anti-deformation half midsole|
|Sole Material|| not provided by the brand
4-4.5 Ultra sticky Boreal® Zenith Ultra
Rand: Wrap Rand™
|Footbed Lining|| |
The Boreal Ninja’s impeccable fit and performance characteristics make it an excellent choice for sport climbing. Plus, the convenience of a slipper makes it an especially good choice for gym climbing and bouldering. For the climber with “duck feet,” the Ninja will be hard to beat on fit, as long as the heel fits in the heel cup. I have access to a massive array of sport climbing shoes, and the Ninja is my current leader for fit and comfort in a high-performance slipper.
This is actually the first Boreal shoe I’ve ever worn, and thus far I’ve quite enjoyed it. Built on the same last as the Boreal Satori, the Ninja shoe is exactly what you want out of a slipper—easy to put on while still snug and soft, with a nice contoured fit. The tongue’s elasticity allows for a quick break-in, and you don’t need to worry about throwing out your back while getting it on for the first few sessions.
If you were around in the 1980s, then you’ll recall the Ninja, the world’s first commercially sold climbing slipper, and perhaps the ads for it featuring action shots of icons like Jerry Moffatt, Peter Croft, and John Bachar. The beloved slipper is back in 2019, with an aggressive trim for steep climbing but some of the same strengths—smearing, sensitivity, a low profile—that gave the original version its cult following. The Ninja has a high-volume fit that was good for one tester’s “big dogs,” and he commented on its lack of bagginess while also providing plenty of room for the shoe to bend and smear. However, our other tester, with low-volume feet, sized tightly, and noted that while this gave her welcome control with toe scums and heel hooks—including locking her in on the crux of a V5 project on slick quartzite in the Colorado high country—she felt that the smearing suffered, but had trouble discerning whether it was the sizing or Zenith rubber at fault. Clearly these aren’t edging shoes, but both testers felt edging performance was adequate for a slip-on boot—if you already have strong feet. All told, this is a precise bouldering slipper made for the steeps and/or sport climbers who like things soft.
In conclusion; although the new 2019 Boreal Ninja bears no resemblance at all to the original 90’s versions they are bang up to date with all the modern features you would want in a modern climbing slipper. They have all the innovations of other performance models in the Boreal range and are a great shoe for bouldering and indoor climbing which would also be useful for hard sport climbing if you’re strong enough.