Jackal II BOA
The La Sportiva Jackal II BOA is a mountain-running trail shoe with a double BOA dial closure, Infinitoo cushioning and a FRIXION WHITE XF 2.0 outsole, marketed for ultra-long-distance mountain adventures.
- Terrain
- trail
- Use
- trail
- Races
- Ultra, 50K+
- Also good for
- Daily training, door to trail, hiking, ultra distance
- Cushion
- moderate
- Weight
- 300g
- Drop
- 7mm
- Stack
- 29/22mm
- Lug
- 3.5mm
- Plate
- rock
- Midsole
- EVA (35A heel/32A forefoot) with Infinitoo PU inserts (30A)
- Outsole
- FriXion XF 2.0 / XT 2.0 rubber with Impact Brake System
- Upper
- Protective multilayer upper with Spyralfit collar and Ariaprene
- Widths
- standard
Positioned by La Sportiva as an ultra-distance mountain runner, the Jackal II BOA pairs a sticky FRIXION WHITE outsole with the Impact Brake System lug layout and a dial-based fit intended to lock the foot down on technical terrain. However, all available evidence is manufacturer marketing; without independent testing, ride feel, durability, sizing accuracy and real-world traction cannot be verified.
La Sportiva claims the Infinitoo midsole absorbs impact and returns energy over long distances, but stack height, drop and firmness are not published and no independent ride assessment exists.
A double BOA Fit System allows on-the-move micro-adjustment of heel and forefoot volume, with a protective upper claimed to hold the foot securely on technical trail. No independent width or sizing data is available.
Runners seeking a dial-closure trail/mountain shoe for long or ultra-distance outings on mixed and technical terrain.
You need verified weight, stack and drop figures, a waterproof membrane, or you are shipping to California or New York (PFAS restrictions).