The Best Seamless Thongs to Wear Under Compression Gear (2025)

Put them on. Forget about them. Give your best.

When you’re in the middle of competing, working out at the gym, or just out and about and being active, the last thing you want to worry about is your underwear.

An uncomfortable pair will distract you.

A pair that chafes can be painful.

And of course there are other worries too: Is it showing? Am I on display? Any of this can throw you off and keep you from performing your best.

So, a great pair is definitely not something to take for granted and spending a little time to find what works for you can make all the difference.

Our top picks feature seamless thongs specifically designed for athletic performance.

This might go without saying, but there are definitely right and wrong underwear options when choosing a pair to wear under compression garments (leggings, bikers, volleyball shorts, etc.).

Whether you’re going for a personal best at the gym or giving your all in competition, you want to be in the zone and reacting freely, not distracted or restricted by an uncomfortable fit.

So, on this list you’ll find popular picks from leading activewear brands specifically designed for high performance and proven effective for many athletes across the board.

And since this list is focused on seamless thongs for layering under compression fabric, all the picks below have these two key features:

1. Soft and stretchy fabric blend geared toward performance.

What you’re looking for here is underwear that’s soft, lightweight, and breathable to keep you cool and comfortable while you’re active.

But you also need to pair these qualities with a stretchy fabric blend that’s durable, holds up against sweat, and allows a full range of motion.

2. No seams for an undetectable fit and friction-free layering.

These can go by a few different names and styles: laser-cut, raw-edge, seamless design, etc.

But what we’re talking about are seam-free designs (i.e. no visible panty lines) for a smooth fit and appearance under snug-fitting compression fabric.

A few additional factors to keep in mind:

Of course, we come in all shapes and sizes and for this reason it’s difficult to say with certainty which underwear style or design is going to work best for you.

Beyond the two key features above, look for other characteristics that match your wants and needs when active.

For example, some thongs may offer no-slip grip on the waistband for a more secure fit while others tout great stretch recovery for long-lasting garment integrity.

A good rule of thumb for athletes: You’ll know you’ve found the right pair when you’re not giving them a second thought.

Note: Featured products are independently selected and reviewed by Compression Athlete. If you purchase through our links, we may earn commission.

1. Under Armour Pure Stretch Thong

The Under Armour Pure Stretch Thong has a very soft and stretchy fabric that remains comfortable all day for any activity.

It has a next-to-skin fit that won’t stretch out throughout the day while also avoiding that tight, squeezing feeling.

Shop at Under Armour: Under Armour Pure Stretch Thong

Available on Amazon: Under Armour Pure Stretch Thong

Under Armour's Pure Stretch Thong is constructed with 4-way stretch to move in all directions with your body and reduces any rolling at the waistband.

This thong boasts a laser-cut edges design for a seamless look and flattering silhouette.

2. Lululemon InvisiWear Thong

The Lululemon InvisiWear Thong has a smooth and lightweight fabric that’s undetectable under leggings.

This thong features a tight knit that prevents slippage and four-way stretch for comfort as you move.

Shop at Lululemon: Lululemon InvisiWear Thong

Lululemon’s InvisiWear Thong is sweat-wicking and quick-drying to keep you dry and comfortable.

This thong also has a breathable cotton gusset and a wide front panel for coverage.

3. LSKD Seamless Thong

The LSKD Seamless Thong features a seamless design with flocking bonded edges to keep it in place.

This thong sports a lightweight performance fabric that’s quick-drying and moisture-wicking.

Shop at LSKD: LSKD Seamless Thong

LSKD’s Seamless Thong utilizes a minimal coverage design that wears great under leggings with no visible panty lines.

This thong has comfortable 4-way stretch, a breathable 100% cotton internal gusset, and is available in 5 neutral colors.

4. Cosmolle Airwear Free Cut Thong

The Cosmolle Airwear Free Cut Thong features a comfortable and stretchy no-show design that smooths and fits like a second skin.

This thong is extra lightweight, breathable, and quick-drying for extended wear comfort.

Shop at Cosmolle: Cosmolle Airwear Free Cut Thong

Cosmolle’s Airwear Free Cut Thong utilizes a 3D printed construction for zero seams and a luxe collagen polyamide yarn for skin-loving benefits.

This thong is available in multiple colors.

5. BUBBLELIME Seamless Sports Thong

The BUBBLELIME Seamless Sports Thong is an extra soft thong with a smooth fit and sleek look.

This thong has high elasticity for a stretchy stay-put fit and laser cutting for no visible panty lines.

Available on Amazon: BUBBLELIME Seamless Sports Thong

BUBBLELIME’s Seamless Sports Thong features the brand’s softest-ever nylon and spandex fabric blend with high density for a comfortable and durable feel.

Available in multiple color options.

6. Alo Yoga Airbrush Invisible Thong

The Alo Yoga Airbrush Invisible Thong is designed to be invisible, breathable, and light as air.

This thong has second-skin fabric and a raw-edge finish for a barely-there feel that moves along with your body.

Shop at Alo Yoga: Alo Yoga Airbrush Invisible Thong 

Alo Yoga’s Airbrush Invisible Thong is made with an ultra-light version of Alo’s signature Airbrush fabric that fits and feels great against your skin.

True to its name, this thong is invisible under leggings and bikers.

7. EBY Seamless Thong

The EBY Seamless Thong features no-slip nylon grip to prevent any riding up, slipping down, or chafing.

This seamless thong is also specifically designed to be invisible under your clothing.

Available on Amazon: EBY Seamless Thong

EBY’s Seamless Thong utilizes their extra comfortable nylon and spandex fabric blend.

This thong has a mid-rise front but is also available in a high-waist version.

8. CSB Seamless Thong

The CSB Seamless Thong features a lightweight and seamless nylon spandex fabric blend with long-lasting stretch recovery for a comfortable second skin fit.

Shop at CSB: CSB Seamless Thong

CSB’s Seamless Thong has a super soft feel that works perfectly under leggings and is available in 3 neutral colors: black, deep brown, and soft tan.

9. Shapellx CoreSculpt Seamless Stretch Thong

The Shapellx CoreSculpt Seamless Stretch Thong features a laser-cut design for seamless edges and a smooth look.

This thong has extra soft and lightweight performance fabric with four-way stretch and comfortable support.

Shop at Shapellx: Shapellx CoreSculpt Seamless Stretch Thong 

Shapellx’s CoreSculpt Seamless Stretch Thong sports a tagless design for all day comfort and adds anti-bacterial cotton in the crotch for health benefits.

10. DEANGELMON Seamless Thong

The DEANGELMON Seamless Thong features a skin-friendly silky-smooth fabric that’s extra stretchy and quick-drying.

This thong has an elastic low-rise waist design and delicate 3D laser-cutting for no-show invisible lines.

Available on Amazon: DEANGELMON Seamless Thong

DEANGELMON’s Seamless Thong is quick-drying, moisture-wicking, and sports a 100% cotton liner.

This thong has a no-roll design that’s tagless for extra comfort and is available in multiple colors.

If you’re looking for additional seamless underwear options, check out our list of the Best Seamless Briefs.