The La Sportiva Jackal II BOA is a high-performance mountain running shoe for ultra-long distances. It features the scientifically tested and proven PerformFit™ Wrap powered by the BOA® Fit System for a fast, effortless precision fit. Two BOA® dials on the protective upper in combination with a double 3-layer microfiber closure flap ensure a perfect zonal adjustment across the foot for maximum heel hold. This increases stability and reduces landing impact in the most technical sections of an ultra-marathon.
TECH INFO
Midsole: EVA with Infinitoo™ Technology + rock-shield in high density EVA + additional internal cushioning platform
Sole: Optimum grip FriXion® White with IBS side tread blocks
Upper: Sandwich mesh (toe and tongue) + thermo-adhesive TPU reinforcements + side panels in mono-filament Nylon + collar in stretch jersey
PLUS
- Innovative dual density EVA sole / midsole package, one more cushioning and one capable of ensuring greater stability. It is equipped with Infinitoo ™ technology, two internal shock absorbing polyurethane pads with high energy return.
- SpiyralFit tongue and collar construction in highly elastic multilayer Ariaprene: protects against impacts and the entry of debris, ensuring high breathability
- Dual Dial BOA® Fit System: maximum heel hold and optimal volume adjustment on the front
- Technical Fit dedicated to long distance performance
- Double closure flap in 3-layer microfibre to ensure tightness and flexibility at the same time