Outsole Material: Rubber

The boot features an anti-fatigue comfort technology

• Vibram® PolarIce Grip™ outsole provides unparalled traction on ice even in the most extreme winter conditions

400 grams of PrimaLoft® insulation

Details: two straps with individually adjustable metal pin buckles

Merrell Women's Siren Hex Q2 Mid E-Mesh GORE-TEX® Winter Boot Choose Women's Width:B(M) - Medium Outsole Material: RubberThis athletic GORE TEX hiker is engineered for the way women move, offering support, alignment, and gender specific stability. FEATURES GORE TEX waterproof membrane, exceptional breathability and waterproof performance Mesh and synthetic upper Metal hook and lacing eyelet for secure lacing Bellows tongue keeps debris out M Select FRESH antimicrobial agents reduces shoe odor Kinetic Fit TRI insole is contoured like your foot and features triple zone