Cotton underwear isn’t just the OG for comfort — it’s better for your body. The fabric is naturally breathable and soft on skin, making it a go-to for anyone prone to irritation or chafing. Unlike synthetics (looking at you, nylon), cotton doesn’t trap heat and, worse, moisture (which can lead to bacteria). That’s a big deal if you’ve ever dealt with discomfort or that not-so-fresh feeling after a long day in tight, non-breathable undies. In short: cotton keeps things cool and dry where it counts.
That’s not to say you can’t wear whatever you want — your body, your rules. But if you’re looking to upgrade your underwear drawer this summer, with pieces that check both the cute and practical boxes, this edit is it. Every pick here is made from at least 70% cotton (with most in the 90%-to-100% range), so you’re getting all the benefits of breathability without compromising on style.
From no-show thongs and comfy bikinis to cozy briefs, boyshorts, and easy cotton bras, we did the digging to find the softest, cutest, and highly-rated pairs.