Columbia Men's Size 11 Fairbanks Rover Waterproof Chelsea Boot This waterproof, leather Chelsea boot features ultra-warm thermal-reflective lining technology. GRIP & GO A lightweight, durable midsole and a grippy, non-marking outsole makes this boot both comfy and competent. Waterproof leather upper with gore details to create a easy on, easy off slip-on Omni-Heat™ thermal-reflective lining retains warmth using breathable silver dots that reflect body heat, so your feet stay warm and comfortable as temps drop Omni-Tech™ sheds water and releases excess heat with multi-layered breathable materials, so your feet stay dry and comfortable in wet conditions TechLite™ midsole provides sustained cushioning and impact absorption using lightweight responsive foam, keeping you comfortable on any terrain Omni-Grip™ outsole provides all-terrain stability and traction with non-marking rubber and a tread pattern that adapts to varied surfaces, so you stay sure-footed in wet or dry conditions 200g insulation