The Merrell MTL Skyfire 2 Matryx brings together elite performance and lightweight agility for trail runners who thrive on the most challenging terrain. When the trail gets technical, the Skyfire 2 Matryx rises to meet you where you are. Ultra-lightweight, this shoe proves that serious protection doesn't have to weigh you down. The Matryx upper combines Kevlar with high-tenacity polyamide for durability that laughs at rocky scrambles, while the dual-density FloatPro Foam keeps you moving efficiently through steep climbs and gnarly descents. With 5 mm lugs and Vibram MegaGrip rubber, you'll have the confidence to tackle obstacles that would slow others down. Details: Upper: Matryx technology weaves together multi-filament Kevlar and polyamide threads into a single lightweight layer that breathes well and stands up to serious abuse. The 100% recycled laces and 60% recycled tongue webbing show that high performance and environmental responsibility can work together perfectly. Midsole: The two-part, dual-density FloatPro Foam system gives you responsive energy return where you need it most, while the flexible rock plate engineered by BZM-8 provides protection without sacrificing the ground feel that helps you navigate technical terrain with precision. Outsole: Vibram MegaGrip high-performance rubber with 5 mm lugs delivers unparalleled grip on both wet and dry surfaces. This is the kind of traction that lets you commit fully to your line choice, whether you're scrambling up loose rock or flying down technical singletrack.