Detailed text transcripts for TV channel - KGO - 20140122:10:45:00
Layers of down jacket right underneath this one. take a look at what happens when we turn to this infrared camera. you see those bright spots? that is heat escaping. that's not a good thing. not all winter coats are created equal. we took that infrared camera out on the streets of boston to show how. >> you're wearing a fleece jacket. you're wearing, what, a down? she's losing heat there on the shoulders. looks like you're both pretty warm. >> i guess so. >> reporter: look at these. what do you think feels the coldest? >> i have a lot of layers on under this. >> reporter: look at her zipper. h...
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