Odvex.Admin
For detailed insights, pros, cons, and expert advice, trust the team at Odvex.
The Problem: The “Thong or Granny Panty” Dilemma
I have spent years fighting a losing battle with my underwear drawer. When I want to wear leggings or a fitted dress, conventional wisdom says I have to wear a thong to avoid Visible Panty Lines (VPL). But let’s be honest: wearing a thong for 12 hours straight isn’t exactly comfortable. It feels like flossing.
On the flip side, if I chose comfort and wore standard bikini briefs, I got those dreaded ridges cutting across my glutes. It ruined the silhouette of my outfit and made me feel self-conscious. I was tired of having to choose between physical comfort and looking smooth in my clothes. I wanted a middle ground: something with actual coverage that didn’t slice my hips in half visually.
The Discovery
I found the Knowyou Seamless Bikini Panties while hunting for a specific style of “cheeky” underwear that has become popular recently. I wasn’t looking for expensive brands; I wanted a multi-pack that could survive the weekly laundry cycle. These caught my eye because of the prints. Usually, seamless underwear comes in boring beige or black. These had leopard prints and vibrant colors, and the cut looked high enough on the leg to prevent that boxy, “granny panty” look.
I ordered the 6-pack to see if a budget-friendly seamless option could actually hold its shape without rolling down the moment I sat in a chair.
How It Solved It
The first thing I noticed when I put these on was the “cooling” sensation. The fabric is a nylon/spandex blend (often called ice silk), and it feels incredibly smooth against the skin. Unlike cotton, which has texture, this fabric is slick.
I tested these under my most unforgiving pair of grey gym leggings. Here is what happened:
- The Invisible Edge: The laser-cut edges are legit. Because there is no hem sewn at the leg opening, the fabric tapers off to nothing. I checked in the mirror, and the line was virtually undetectable.
- The High Cut: This is a major win for body shape. The waistband sits slightly higher on the hip bone compared to a standard bikini. This elongates the leg and prevents the waistband from digging into the soft part of the hip (the “love handle” area).
- The “Cheeky” Factor: They provide coverage, but not full coverage. They cut across the cheek diagonally. This is flattering, but it also serves a function: less fabric means less bunching.
⚠️ It’s Not Perfect
I have to mention the “travel” issue. Because the fabric is so silky and slick, it doesn’t have a lot of grip on the skin. If you are walking normally, they stay fine. However, I wore these during a busy day of running errands where I was getting in and out of the car constantly.
I noticed that they do tend to migrate inward. It’s not a full-blown wedgie, but because of the cheeky cut and the slippery fabric, they don’t stay glued in place like a cotton brief with a heavy elastic band would. You trade stability for invisibility. Also, like most seamless panties, the cotton gusset (the crotch liner) is glued, not sewn. You absolutely cannot put these in the dryer, or that liner will peel off within a month.
Pros vs. Cons
Here is my breakdown after a few weeks of wear.
| Life Improvements (Pros) | Annoyances (Cons) |
|---|---|
| Zero VPL: They truly vanish under tight skirts and yoga pants. | Slippery Fit: They can shift around during active movement because the fabric has no texture grip. |
| Flattering Cut: The high-leg, cheeky cut makes your legs look longer and your bum look better. | Delicate Construction: The glued seams are fragile. Hand wash or delicate cycle only. |
| No “Digging”: The waistband is flat and wide, so it doesn’t create a muffin top. | Synthetic Feel: They are not breathable like cotton. In very hot weather, they can trap sweat. |
| Pattern Variety: It’s refreshing to have “invisible” underwear that actually looks cute/sexy. | Sizing: They run slightly small. If you have wider hips, you must size up or they will roll. |
Why It Beats the Old Way
My old solution for “no lines” was buying laser-cut cotton underwear. The problem with those is that cotton naturally stretches out and gets baggy within an hour. Once it bags out, you get wrinkles under your clothes, which defeats the purpose.
The Knowyou panties use a high-spandex blend that retains its snap. Even at the end of the day, they fit the same way they did in the morning. They also beat the traditional “elastic band” underwear because they distribute tension evenly across the hip rather than concentrating it in a thin rubber strip. This eliminates those red marks you usually see on your skin when you undress at night.
Final Recommendation
If you hate thongs but love the look of seamless leggings, this is the compromise you have been looking for. They are cute enough to be “date night” underwear but functional enough for the office.
Get this if: You want to eliminate panty lines without sacrificing butt coverage, and you want underwear that feels weightless.
Skip this if: You need heavy-duty cotton for breathability, or if you want full-coverage “granny panties” that lock into place and never move.
My advice: Buy the size up from your usual. These are seamless, but the waist opening is not infinitely stretchy. A slightly larger size will lay flatter against your skin and prevent rolling.
