An agile and lightweight mid-cut boot, the Aequilibrium Hike GTXA(R) is the perfect addition to the Aequilibrium family for mixed-terrain hiking. The synthetic fabric guarantees a lightweight and breathable feel without sacrificing protection and durability, thanks to the abrasion-resistant welt in the most highly exposed areas. Exceptional walkability thanks to the innovative Double Heel construction 3D Flex System EVOdirectional articulation for contoured, protected ankles: provides stance control and perfect ankle mobility VibramA(R) Spring-lug outsole with Impact Brake System for greater break force control and precision BluesignA(R) and OEKO TexA(R) certified ePE Gore-TexA(R) membrane and abrasion-resistant welt to tackle any terrain and extreme weather conditions The resoleable tread extends the life of the product and ensures the durability of the sole WEIGHT: 480 g / 16.9 oz (Half Pair) UPPER: Anti-abrasion and water-repellent fabric / Mesh Collar & 3D Flex Ankle System Evo / Recycled Laces / Fabric reinforced heel & toe counters LINING: BluesignA(R) Certified ePE Gore-TexA(R) Extended Comfort / Air Mesh Collar INSOLE: OrtholiteA(R) Hybrid with 5% recycled rubber + 15% production waste foam MIDSOLE: 5mm Polypropylene Stiffener / Polyurethane foam with anti-abrasion TPU film SOLE: VibramA(R) Spring-Lug w/ PU foam lining and Impact Brake System LAST: Aequilibrium FIT: Medium PROTECTION: 6/10 STABILITY: 8/10 STIFFNESS: 6/10 Technology 2H Double Heel Sole design for enhanced walking and braking performance 3D Flex Multi-directional upper hinge that supports natural ankle movement while providing stability and protection Impact Brake System Lug pattern with slanted and opposing angles to reduce impact forces and increase traction ReSole Me Extend the life of your footwear by resoling at a La Sportiva approved cobbler VibramA(R) High performance rubber compounds in outsoles that is known for superior grip, traction, and durability GORE-TEXA(R) Highly durable shell offers extreme breathability and waterproofness