With a 2/3 level of warmth on Columbia's scale, making it 'best suited for hiking, winter sports and city exploration', the coat has got an Omni-Heat™ Infinity gold dot reflective lining ...

Columbia introduced its Omni-Heat technology ... my jacket on a bright day. Surprisingly, the lining isn't at all ...

the piece I wore the most—from glaciers to black sand beaches—was the soft but durable Columbia Titanium jacket, a fleece featuring Omni-Heat Arctic solar-capture insulation (the top image below).