The Lululemon Swiftly Tech Long Sleeve ($78) is a staple among shoppers for a reason: it's the perfect layering piece. The fabric is light and breathable, and it's fitted, with thumbholes for optimum comfort. It's warm and comfortable for chilly early-morning runs in the spring but also a great base layer if you exercise outdoors in winter.
What reviewers say: There's no doubt this top is great for year-round wear, but shoppers consider it a cold-weather essential. "These are my favorite shirts to wear to the gym during fall and winter," a reviewer writes. "They are the perfect length and do not ride up. They are warm but don't make you overheat. They are also my favorite because they do not hold onto odor or smell easily."
Why we love it: We love how this top features Silverescent technology to stop odor-causing bacteria in their tracks.
What's worth noting: Some shoppers found that the sleeves ran too tight or were too long.
Additional details: Sizes: 0-20 | Colorways: 10
