The fix you didn't know existed

No more
gap,
no more fuss.

PINX is a uniquely designed pin that hides inside your shirt's placket and keeps everything in place — a non-permanent, reusable, 100% invisible solution to shirt gapping.

Shop Now See How
Before
After
Button-up shirt with gap at bust before using PINX
The Problem The gap everyone knows
Button-up shirt lying flat after using PINX
PINX Fixed! Problem solved

You are not alone

Every woman knows the struggle

Button-up shirts are beautiful — until they're not. The gap at the bust is one of fashion's most common frustrations, and it happens regardless of size, shape, or fit.

Shirt gaping before PINX — patterned shirt
The Problem
Shirt closed after PINX — patterned shirt
PINX Fixed!
Shirt gaping before PINX — purple shirt
The Problem
Shirt closed after PINX — purple shirt
PINX Fixed!
9/10 Women experience button-up gaping at some point
1pin Is all it takes to fix it — permanently and invisibly
0 Visible trace — hidden completely inside the placket

Simple. Clever. Invisible.

How PINX works

Watch the video to see it in action — then scroll down for the three-step quick reference.

Step 1 — inserting PINX into shirt placket
1

Insert

Point down, inside the placket

Step 2 — securing PINX in place
2

Flip & Secure

Rotate 180° and fasten

Step 3 — shirt closed perfectly with PINX
3

Button Up & Go

No gap. Nobody knows.

The word is out

What real women are saying

"Well, that has to be the simplest way to fix a lifelong annoyance ever. Thanks!!!"

— Mandy, Verified Amazon Customer

"Very cool new product. Totally works. I like it better than having an extra button or snap sewn in because the PINX pin can hold the whole section of the shirt flatter, rather than just putting in one more bit to tug. At this price for 3 pins, it's cheaper than what I would pay a tailor to fix a problem shirt — plus I can swap the pins to other shirts when I need to."

— Verified Amazon Customer

"I bought six Express button down blouses after getting these. 😂"

— Mandy, Verified Amazon Customer

Available on Amazon · fits sizes 32AA–42GG · one customer bought six new blouses just because she finally had PINX 😄

Our story

Born from a very real frustration

Just Between the Girls started with a simple problem that every woman knows too well: a button-up shirt that looks perfect on the hanger, and gaps open between the buttons the moment you put it on.

"Why isn't there a simple, invisible fix for this? So we made one."

PINX is that fix. Small, reusable, invisible genius. It gives you back every button-up you've ever given up on. We're a small Atlanta-based side hustle with a big personality (yes, that's our sponsored Porsche), and we believe every woman deserves to wear exactly what she wants.

Just Between the Girls branded Porsche race car

Yes, that's our car.

Just Between the Girls · Atlanta, GA · Est. 2011

Get yours

Ready to close the gap?

Pick your preferred way to shop — both are quick and easy.

Shop on Amazon

Fast shipping, easy returns, and verified reviews. Fits shirts sized 32AA–42GG.

Buy Direct via PayPal

Prefer to buy direct? Secure checkout via PayPal — quick and easy.

Say hello

We'd love to hear from you

Questions, wholesale inquiries, or just want to share your PINX story? Drop us a note.