"These Tracksmith Allston Tights ($118) are made for runners and it shows. Tracksmith sent me a pair to test out and I can already tell they're my new go-to for chilly winter runs: high-waisted and snug but not constricting, tricked out with nifty pockets, and smooth as butter when they're on. I got the navy blue pair and I'm truly obsessed." — Maggie Ryan, assistant editor, Fitness