Let’s talk about underwear. Specifically, the voenxe Seamless Thongs that have taken over Amazon with over 100,000 reviews and a 4.5-star rating.

I’m someone who has strong opinions about underwear. It should be comfortable, invisible under clothes, and not fall apart after three washes. I’ve tried everything from $5 drugstore packs to $30 luxury brands. So when I saw these 5-packs on Amazon for $15, I was equal parts intrigued and skeptical.

I bought three packs. I’ve now worn and washed them for two months. Here’s my brutally honest review.

First Impressions

Packaging: Simple plastic bag, nothing fancy. Each pair is individually wrapped, which is nice for hygiene.

Feel: The fabric is incredibly soft—like buttery soft. It’s a nylon-spandex blend that feels smooth and stretchy. Not cotton, but not that cheap synthetic feel either.

Construction: Seamless (as advertised), with a cotton gusset. The edges are laser-cut, not hemmed, which is what makes them truly invisible under clothes.

The Fit Test

I’m 5’6″, 145 lbs, and ordered Medium based on the size chart. Here’s how they fit:

Waistband: Sits comfortably at the hips. Not too tight, not too loose. No digging in, no rolling down.

Coverage: True thong style—minimal back coverage. If you’re not a thong person, these won’t convert you. But if you already wear thongs, these are comfortable.

Leg openings: The laser-cut edges lay flat against the skin. No bunching, no riding up (more on this below).

“The kind of underwear you forget you’re wearing—which is exactly what you want.”

The Invisible Test

This is the whole point of seamless underwear, right? No visible panty lines (VPL). I tested them under:

• Thin leggings: Completely invisible. Zero lines.
• Bodycon dress: Nothing showing through. Smooth silhouette.
• White pants: The nude color is truly invisible. The black shows slightly but still minimal.
• Yoga pants: No lines, even in downward dog.

These deliver on their main promise. They’re genuinely invisible under tight clothes.

Comfort: All Day Wear

I wore a pair for a full 14-hour day—work, gym, dinner out. Here’s how it went:

Hour 0 (7 AM): Put them on after showering. Immediately comfortable. No adjustment needed.

Hour 4 (11 AM): Forgot I was wearing them. No digging, no bunching.

Hour 8 (3 PM): Still comfortable. No riding up (the ultimate thong test).

Hour 10 (5 PM): Just finished a spin class. They stayed in place through sweating and movement. Impressive.

Hour 14 (9 PM): Took them off. Still no irritation, no redness, no discomfort.

The Wash Test

I’ve washed these at least 20 times now. Here’s how they’ve held up:

After 5 washes: Still soft, still stretchy. No pilling, no fading.

After 10 washes: Minimal wear. The edges are still smooth, no fraying.

After 20 washes: Some slight fading in the black pair. The nude and gray still look new. Elasticity is still good—no stretching out.

Washing instructions: I toss them in a mesh laundry bag and wash on delicate/cold. Hang dry. This probably helps with longevity.

Comparison to Other Brands

The voenxe thongs outperform underwear that costs 4-8x more. The only area where they fall slightly short is long-term durability—but at $3 per pair, I can replace them twice a year and still save money.

Color Options

I bought the “Nude/Black/Gray” 5-pack. Here’s my take:

• Nude: Perfect skin-tone match. Truly invisible under white clothes.
• Black: Rich color, shows slight fading after 20+ washes but still looks good.
• Gray: Nice neutral, hides wear well.

They also come in other color combos and multipacks. I’m considering buying the pastels for spring.

Who Should Buy These

Perfect for:

• Anyone who wears tight-fitting clothes (leggings, bodycon dresses, etc.)
• People who want comfortable, everyday thongs
• Budget-conscious shoppers who don’t want to sacrifice quality
• Those who prefer seamless, no-show underwear

Might not be for you if:

• You’re not a thong person (these won’t convert you)
• You prefer 100% cotton underwear
• You want full-coverage briefs

Sizing Tips

Based on my experience and reading hundreds of reviews:

• True to size: Most people find these TTS
• Between sizes? Size up if you prefer more coverage
• Curvy hips? These are stretchy and accommodating

The size chart is accurate—measure your waist and hips and go by that, not your usual size.

Final Verdict

I went into this review expecting to be mildly impressed. Instead, I found a new holy grail. The voenxe Seamless Thongs deliver on every promise—comfortable, invisible, durable, and affordable.

They’re not perfect (no underwear is), but they’re the best I’ve found under $5 per pair. And honestly? They compete with underwear that costs 8x more.

Rating: 9.0/10

Would I buy them again? I already have. Twice.