Women's Columbia Bugaboot Omni-Heat boots are built for serious cold weather activities and sets the bar for the women's winter footwear industry by iconic Columbia. Women's Bugaboot Omni-Heat, an instant hit classic for Columbia since 1993, is back and is now better than ever with the addition of Columbia's exclusive Omni-Heat membrane that's like a space blanket for your feet as it reflects your own body heat back into the boot for lightweight warmth without the need for bulky insulation. The uppers of the Women's Columbia Bugaboot Omni-Heat boot consist of nubuck and split suede leather combined with an Omni-Tech® technology microporous membrane to keep water from penetrating in while allowing perspiration to escape, along with an internal lining and footbed cover with AgION® antimicrobial technology to protect against bacteria and to neutralise odours.