La Sportiva - Men's Jackal II BOA

The Jackal II BOA is a performance-oriented Mountain Running® shoe designed to take on any distance but built with Ultra-Long distance adventures in mind. It shares the same sole package as the Jackal II which is equipped with Infinitoo™ cushion technology for less energy expenditure. The protective upper with a precise and secure fit ensures stability even on the most technical sections of trail while the double BOA® Fit System makes heel/forefoot volume adjustments a breeze while on the move.

• Balanced fit and unencumbered flexibility via the Double BOA® Fit System in combination with dynamic straps for maximum heel and forefoot adjustability
• Innovative combination in the midsole of EVA and Infinitoo™ PU inserts (10mm heel and 5mm forefoot) for the perfect balance of long-distance cushion and trail stability
• FriXion® XF 2.0 Outsole (White "X") With All-Terrain Tread is Super Sticky With Impressive Grip On All Types Of Terrain
• Spiyralfit Tongue and collar construction with multilayer Ariaprene protects against heel impacts and debris entry while providing high breathability
• User Profile: Ideal for Mountain Runners looking for a shoe that can tackle it all, from short jaunts to all-day adventures on all types of terrain

WEIGHT: 10.5oz / 300g
LAST: Tempo 
FIT: Medium
UPPER: Ariaprene Tongue & Collar / Dual BOA Fit System / Recycled Sandwich Mesh Forefoot / No-Sew Thermo-adhesive TPU Reinforcements / Multilayer Microfiber Dynamic Straps / TPU toe cap
LINING: Recycled Abrasion Resistant Mesh
INSOLE: Ortholite Hybrid with 5% recycled rubber + 15% production waste foam
MIDSOLE: Compression Molded EVA w/ Infinitoo PU inserts / 1.5mm Dual-Density Compressed EVA Rock-Guard
SOLE: FriXion® XF 2.0 w/ Impact Brake System / FLEX Inserts 
LUG DEPTH: 3.5mm
DROP: 7mm; Stack: Heel: 29mm / Toe: 22mm
CUSHIONING: EVA: 35A & 32A (heel/forefoot) / Infinitoo PU Inserts: 30A (heel/forefoot)