Building on the success of La Sportiva’s Cyklon trail shoes equipped with the BOA® Fit System, the two long-time partners have joined forces to create their fourth trail model together: La Sportiva Jackal II BOA, a high-performance mountain running shoe for long distances, where it is essential to have footwear that guarantees a perfect fit, providing the right support and maximum grip even in the most difficult conditions. The new Jackal II BOA model, equipped with the PerformFit™ Wrap powered by BOA® Fit System, ensures a precise, micro-adjustable fit that locks in the heel, increasing stability, improving running efficiency and decreasing contact impact on technical terrain. Thoroughly tested in BOA’s Performance Fit Lab, it has been scientifically validated to improve athletes’ performance. The Sportiva Jackal II is also equipped with two L6 wheels and new generation TX6 textile laces, which allow maximum adjustability in two distinct zones of the foot, guaranteeing a secure heel hold and a forefoot lock for a more snug fit. It adapts to different foot shapes and allows micro-adjustment even while running, e.g. in case of swelling during long runs and ultra-marathons.