Hold it in Not your tummy, silly &mdash the warm fuzzies. Half the trick of staying comfy in winter is not letting your body heat leak away in the first place. Which makes Columbia Sportswear&rsquos Omni-Heat&trade thermal reflective technology of teensy silver dots in the Bugaboo line a pretty smart idea up north. Because it reflects your own radiating warmth inwards, instead of letting it escape outdoors. And this without adding undue bulk. Plus the oiled leather of these duck boots is fully waterproof and the rubber shell extra insulating, with traction built in. Climb every mountain, already (Rs 8,499, columbiasportswear.co.in)