We Put the Best Workout Underwear to the Ultimate Test—And the Results Will Surprise You!

Ever wonder why finding truly comfy workout underwear feels like chasing a mythical creature? Yeah, me too. After all, nothing kills the vibe faster than underwear that rides up, squeezes too tight, or makes you feel like you’re wrestling with fabric instead of conquering your fitness goals. So when our team of relentless testers stumbled upon the Amazon Essentials Women’s Cotton Bikini Briefs, it was like a breath of fresh air—and no, they’re not your typical “invisible” undies, but that’s okay. These bad boys bring that cool, breathable cotton goodness, a no-dig elastic promise, and a size range that actually includes everyone—talk about win-win! Whether you’re rocking sweatpants or a workout dress, these simple, reliable briefs have become my go-to, not just for exercise but for everyday ease. Curious if these wallet-friendly skivvies live up to the hype? Dive right in and let’s unwrap the truth. LEARN MORE

While it’s true that Amazon plays host to a seemingly endless array of apparel options, our testers have found that the everything retailer has some quality skivvies, if you know where to look. Enter: the Amazon Essentials Women’s Cotton Bikini Brief Underwear. It’s simple, comfortable, and is great for low-impact workouts, or when you want a less-compressive underwear option.

Although it definitely does not qualify as no-show, especially under leggings, it’s great under sweats, workout dresses, and other breezy workout clothes. Our testers love the smooth, soft cotton, the breathable, lightweight feel, and the no-dig elastic on these undies. Plus, it comes in SO many colors and the size range is the most inclusive I’ve seen so far.

Unlike other picks on Amazon, I love that this is always in stock, easy on my wallet, and most importantly, comfortable. The cotton and spandex-blend material is thin enough that I always stay cool and dry, and the cut, while not minimal, is actually quite flattering. I find myself reaching for it even on non-workout days, especially when I’m wearing dresses or skirts. If you want a no-nonsense pack of underwear that won’t break the bank, this is a great pick.