They're the mullet of cold-protective clothing. Half glove, half mitten — really, fingerless gloves with a handy mitten flip-top.

They are also fantastic.

Now, partly, this is a matter of personal opinion. But partly, it's just good science.

Before you spend your weekend outdoors, or take your next chilly commute, let's talk briefly about glittens — and the science that makes them superior hand covering.

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