The updated model of La Sportiva Jackal II maintains all the best aspects of the original now with new eco-friendly upper materials, a new heel/tongue construction and enhanced breathability - all in a lighter weight design.

In the making of the La Sportiva Jackal II running shoe, every detail counts. From the upper to the sole, everything is designed to promote foot comfort over long distances: a comfortable, loose fit designed for ultra-marathons, a soft, wraparound comfort fit elastic tongue for maximum freedom of movement, and an inner gusset construction to protect against rocks or mud. The lacing has loops incorporated directly into the side panels of the upper: a solution that facilitates volume adjustment during long runs when the foot tends to swell. The Net-Mesh side panels promote ventilation and climatic comfort. The heart of Jackal, however, lies in the innovative EVA sole/intersole package with high energy return polyurethane cushioning pads Infinitoo ™ Technology . The front element increases cushioning, the rear insert helps stabilize the run. The midsole also includes a high-density EVA Rock-Shield insert for a more stable run and rock-guard effect. The sole is made of Frixion Red compound with differentiated Impact Brake System lugs and longitudinal FLEX grooves that help the sole bend along the bend lines.

La Sportiva Jackal II Specs: 

• Updates from the first Jackal version include: use of recycled mesh (forefoot, tongue and lining), new tongue construction for reduced weight, redesigned heel with new construction and materials, and a new lacing design for a higher level of forefoot volume adaptability
• Innovative midsole combination of EVA and Infinitoo™ PU Inserts (10mm heel and 5mm forefoot) for the perfect balance of long-distance cushion and trail stability
• Frixion® XT 2.0 Rubber Compound for a balance of traction and durability
• Medial/lateral Mono-Burr Mesh increases breathability for maximum ventilation and climate comfort
• User Profile: Ideal for Mountain Runners looking for a mid- to long-distance shoe for runs and races on more technical terrain

Specs: 

• WEIGHT: 275g
• LAST: Tempo Ultra
• FIT: Wide
• UPPER: Recycled sandwich mesh / Recycled laces / Breathable Mono-burr Nylon inserts / No-Sew Thermo-adhesive TPU reinforcements / TPU toe cap
• LINING: Recycled abrasion-resistant mesh
• MIDSOLE: Compression molded EVA with Infinitoo™ PU inserts / 1.5mm Dual-density compressed
• EVA rock-guard
• SOLE: FriXion® XT 2.0 with Impact Brake System™ / FLEX inserts / 3.5mm lugs
• DROP: Drop 7mm • Stack: Heel: 29mm / Toe: 22mm
• CUSHIONING: EVA: 35A & 32A (heel/forefoot) / Infinitoo™ PU inserts: 30A (heel/forefoot)