If you're on TikTok, you know that leg warmers are a major trend. Fashion influencers on the app are wearing chunky leg warmers with their Jadon Dr. Martens and Margiela Tabis. Earlier this year,Sarah Jessica Parker gave the winter essential her seal of approval, styling them with a pair of gray-wash jeans. And now, Jennifer Garner is all over them, having worn leg warmers on repeat for the past couple of weeks.