La Sportiva Jackal II Boa
Performance-oriented mountain running shoe for Ultra- Long distances. Jackal II Boa is the cushioning shoe with Infinitoo technology for less energy expenditure. Protective upper with precise, snug fit, dual BOA wheels for quick and perfect volume adjustment even while running. SpiyralFit tongue and collar construction of multilayer, highly elastic Ariaprene: protects against impact and debris entry. Dual-density EVA outsole/midsole, one more cushioning and one capable of providing greater stability. It also features Infinitoo technology, two internal cushioning polyurethane pads with high energy return.
Features
- Thermo-adhesive TPU and multilayer microfiber flap
- Ariaprene tongue and collar
- Insole: Ortholite Hybrid Mountain Running
- Drop: 4 mm
- Midsole: EVA with Infinitoo polyurethane inserts
- Technology + high-density EVA rock- shield
- Outsole: Bi- compound FriXion Red with lateral IBS lugs
- Actual Weight: 312 g (UK 9)
Technologies
Ultra Long Distance
Ideal for long distance, ultra trail and ultra marathon competitions or demanding training sessions. An extremely protective and shock absorbing boot.
Ortholite MR E
The Mountain Running collection models adopt the exclusive La Sportiva insoles by Ortholite, with 2 different thickness. Both models are available in men and women version and differs for the materials’ densities. Breathable for a cooler foot. The unique open cell structure creates a moisture management system. Long term cushioning: insole will retain over 95% of its thickness over time and won’t flatten out. Anti-microbial agents and washable properties for a more igienic shoe.
Impact Brake System
The innovative system is applied to the sole to absorb negative ground impact, help traction and improve grip downhill. Created and developed by the R&D department at La Sportiva, it offers real advantages during racing by reducing negative ground impact. The unique position of the lugs allows as many of them as possible to come into contact with the ground, for maximum impact absorption.
FriXion White
The La Sportiva FriXion® compound is the result of extensive R&D aimed at creating outsoles with parameters of grip and durability that respond to all types of use and terrain. Super sticky, leave no trace, long lasting compound. Ideal for high performance mountain running shoes and indoor climbing shoes.
Infinitoo™
An exclusive technology developed by La Sportiva that allows perfect impact absorption and guarantees a very high energy return during the run. The soft polyurethane that makes up the structure of Infinitoo™ maintains its high cushioning performance over time.
PerformFitTM Wrap powered by the BOA® Fit System
The PerformFitTM Wrap powered by the BOA® Fit System enhances running efficiency by reducing impact when landing on technical trails or steep descents. With proven durability in the toughest conditions, BOA laces and wheels allow runners to tackle all terrains with more confidence. These two technologies ensure a precise fit and maximum performance.
All Grounds
Versatile soles, ideal for all types of terrain including stone, scree, grass, moss and mud. Ideal for running either in high humidity or on dry ground. Incorporates the Impact Brake System.