La Sportiva Jackal II GTX
Mountain Running® shoe in Gore-Tex® membrane with Invisible Fit technology dedicated to off-road running in the winter months over ultra distances and prolonged workouts. This is enabled by the exceptional cushioning guaranteed by the innovative midsole that uses Infinitoo™ high energy return technology.
Features
- Protective toecap made of anti-shock and anti-abrasion TPU
- Side Net-Mesh for maximum breathability
- Rock-Shield integrated into the high-density EVA midsole for stabler running
- Innovative EVA sole/midsole package with internal cushioning pads with innovative Infinitoo™ high energy return technology. The front insert increases cushioning, the rear insert helps to make running stabler
- Soft and snug Comfort-Fit tongue for maximum freedom of movement, with internal gusset construction to protect you from rocks and mud
- FriXion® Red compound tread blocks with differentiated thickness and Impact Brake System and FLEX grooves
- Lacing with loops incorporated directly into the side panels of the upper shoe, making it easier to adjust volumes
- Comfortable, wider designed for use in ultra-trails
- Upper: Sandwich mesh (toe and tongue) + thermo-adhesive TPU reinforcements + side panels in mono-filament Nylon + collar in stretch jersey
- Lining: Gore-Tex® Invisible fit Bluesign® Certified
- Insole: 4 mm Ortholite® Hybrid Mountain Running® Ergonomic
- Midsole: In EVA with Infinitoo™ Technology inserts + rock-shield in high density EVA + additional internal cushioning platform layer
- Sole: FriXion® Red bi-compound with IBS side tread blocks
- Drop: 7 mm
- Heel: 29 mm
- Real weight: 307 g (UK 8 1/2)
Technologies
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.
Ultra Long Distance
Ideal for long distance, ultra trail and ultra marathon competitions or demanding training sessions. An extremely protective and shock absorbing boot.
FriXion Red
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.
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.
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.