Covered with tiny silver dots otherwise known as Columbia's Omni-Heat technology ... The super-light fabric is also really easy to layer over when you're donning ski pants or hiking pants.

Made from an expanded pattern of metallic dots, Omni-Heat Infinity reflects your body heat back to you when you add it to the ...

Then I tested out those picks for myself. Good base layers should be formfitting — not tight but not loose — in order to retain heat. They are often woven from merino wool or technical ...