The North Face Back to Berkley Boot is a versatile mens winter boot with old-school trainer looks and new-school boot construction technology from The North Face. Men's Back to Berkley Boot includes a HydroSeal™ membrane for reliable waterproof defence, within the sturdy polyester and suede uppers. The North Face builds TNF Winter Grip™ rubber outsoles into the Back to Berkley Boot. (Ice Pick™ lugs extend with lower temperatures to bite ever deeper into slippery terrain for foot firm and safe grip over snow and ice.) The North Face Primaloft® Eco insulates the Back to Berkley Boot.