Merrell Women's Speedarc Surge Boa Boots Size:10.5 Double insole system offers additional

Double insole system offers additional customization

Slip-resistant TPR outsole with sawtooth detail

Mini outsole promotes a natural rocking movement with each step

Asymmetrical left and right non-metallic carbon-fiber toes offer unobtrusive fit and are 15% lighter than steel

16g steel shank

Merrell Women's Speedarc Surge Boa Boots Size:10.5 Double insole system offers additionalEffortlessly take to the trails in the propulsive Speedarc Surge hiker Breathable, abrasion resistant, and lightweight Matryx upper combines multi filament threads of Kevlar and high tenacity polyamide to create a single layer of material BOA lacing system Lightweight FlexPlate technology provides torsional rigidity, lateral stability, and forefoot flexibility. Removable EVA foam footbed Dual density, two part FloatPro+ foam midsole Durable rubber