14 Pairs Of Workout Underwear That Will Keep You Comfy, Per Trainers and Ob-Gyns

Andrea Speir, founder of SPEIR Pilates, loves a pair of seamless underwear that doesn't bunch up. That's why she loves the Lululemon UnderEase Mid-Rise Thongs. "This super soft, wet-wicking set has that barely-there feel," she says, adding that the bonded seams and delicate cut means no irritation or VPLs.

WH associate e-commerce editor Lily Wohlner is also a mega fan of the brand's underwear. "They're my go-to underwear when I know I'll be sweating because they wick away moisture and keep me feeling cool and dry," she says. "Plus, they're completely invisible under leggings."

These undies are loved by three experts: Ariel Belgrave, Tone It Up trainer and creator of The L.E.A.N Method, Natalie Uhling, creator of NuFit, and Anna Kaiser, owner of Anna Kaiser Studios.

Because shimmying your way through a Beyoncé song requires bottoms that aren’t going to give you a wedgie every time you thrust a hip, Uhling and Kaiser both turn to these thongs. “They stay put so I don’t have to keep adjusting—or I just go bare,” says Uhling. And Belgrave agrees, saying, "This underwear was created for workouts—they are super soft, lightweight, breathable (thanks, sweat-wicking tech material!), and don't require adjusting during the workout."

Kristin McGee, yoga and meditation instructor at Peloton, prefers briefs over thongs, but only if they're seamless. Her go-to for a barely-there feel with all the coverage? The super absorbent Knix Athletic Boyshorts. The company designed this specific pair of undies after surveying over 250 female personal trainers in an effort to ensure it could hold its ground against moisture and sweat. And let me tell you—they definitely passed the test.

Travel influencer Priya Mareedu calls these underwear "magic," for good reasaon. The combination of merino wool and the super feminine cut (DW, it's not a thong!) makes them super comfy for workouts, sleeping, and everything in-between. Mareedu specifically loves wearing them on hikes, walks, or long travel days. Plus, they come in so many cute colors, so you never get sick of wearing them every day.

WH commerce editor Jasmine Gomez loves the Jockey Tactel Thong for workouts because they stay put, they're breathable, and they're easy to move in. "They also don't chafe, which is a major plus for me," she says. While they are a low-rise fit, they're not super constricting, so you don't have to worry about these panties causing unnecessary bulging under your leggings (phew!).

Looking for something that's 100 percent cotton? Skims has got your back. This specific pair has a dipped front so you never have to worry about them peeking through your leggings or shorts. Plus, they're super stretchy and never constricting. One online reviewer loves these panties so much, she said they're by far the softest cotton underwear she's ever found. "They're so stretchy, soft, and flattering," she notes.

"The best underwear for workouts, in my opinion, should be relatively thin (quick-drying), soft on the skin, and seamless," says Judine St. Gerard, NASM-certified personal trainer and head coach at Tone House. She tells us that the Victoria's Secret no-show line—she likes both the Hiphuggers and thongs—does an amazing job when it comes to coverage all three of her workout panty non-negotiables

E. Taylor, PES/PNF specialist, NASM-certified trainer, and model, says Nude Barre has the best long-lasting seamless underwear. "They're perfect for yoga, mobility, and flow training," she notes. "Their underwear doesn't show any lines through stretchy fabric and they have a wide range of skin tone colors."

If you're menstruating, you'll appreciate having undies that keep you comfortably dry, and these deliver just that. They can absorb up to eight teaspoons of liquid, whether it's blood, urine (it happens!), or sweat. So, if your tampon leaks, consider these your reliable backup—no need for extra pads. Plus, the best part is, you won't even notice any excess moisture; these undies seamlessly absorb it all.

WH assistant fashion editor Rose Lauture also loves Knix underwear. According to her, they're super comfortable and stay totally in place during her workouts.

WH editorial assistant Addison Aloian loves this seamfree underwear from Jockey. "It's my go-to underwear for most days of the week," she says. "They're unbelievably soft, making them perfect to workout, sleep, or run errands in," she notes. According to Aloian, the waistband also hugs her body perfectly and is nice and stretchy, so they never feel tight. "Plus, they look pretty cute on."

These panties are so thin, you'll forget you're wearing them. And WH assistant social media editor Isabelle McMahon is agrees. "They're so lightweight and soft with their 100 percent cotton gusset," she says. Plus, she notes that they're super subtle under leggings, making them awesome for workouts. "I literally never have to worry about them poking through or creating any weird lines through my workout gear."

Talene Appleton, NASM, personal trainer and fitness commerce editor at Men's Health, says she wears these low-rise underwear when she hits the gym. "They're seamless and thin, which I always appreciate," she notes. However, she mentions that they don't hold up super well over time after washing them a bunch.

I'm a personal fan of working out in string thongs because they're practically invisible, and this one from Alo Yoga has been my everyday go-to. As someone who likes to strength train, I move a lot during my workouts, and these never slip or slide during squats or leg raises. Since they're a G-string, they also never show through my leggings and there are no bumps in sight.

"These don't show through any fabric, they stay put, and they never chafe," says WH fitness editor Jennifer Nied, who does all sorts of different workouts in them. Although they're nice and snug, you don't even feel like you're wearing anything as they have four-way stretch fabric and zero elastic lining, so they lay perfectly flat on your body.