The Shortie (Medium Flow) black boyshort period underwear, flat front view
The Shortie black boyshort period underwear, flat back view
Close-up of hands stretching the smooth gusset seam of the Shortie period underwear
The Shortie (Medium Flow) black boyshort period underwear, front view worn on model holding a peony
The Shortie (Medium Flow) black boyshort period underwear, side view from behind worn on model holding a peony
The Shortie (Medium Flow) black boyshort period underwear, flat front view

First model wears size small.
Second model wears size medium.

Medium Flow · Boyshort Fit

The Shortie (Medium Flow)
Read reviews
$45.00

The everyday pair for the middle of your cycle. The Shortie features a stay-put boyshort fit with four layers of leak-proof protection. Padding runs all the way up the front and back, so you're covered while you sit, sleep, and move. The fabric is bamboo-soft, machine washable, and made to last 40+ washes.

Absorbency Medium · All Day

Approximately holds the equivalent of 4 regular tampons. Built for days 3–5 of your cycle.

Size

Runs Slightly Small. Between sizes? Size up for your preferred fit.

Free shipping on orders over $50. Any two pairs ship free. Her Pair: free first order exchange within 45 days. Third-party tested, leak-proof protection.
Fabric & Layers
Body95% Bamboo · 5% Spandex
1Gusset Layer95% Cotton · 5% Spandex
2Absorbency Padding Layer80% Polyester · 20% Nylon
3Leakproof Barrier Layer100% Polyester · PUL
4Outer Fabric Layer95% Bamboo · 5% Spandex

All four layers are sewn into one smooth gusset that feels like regular underwear.

Fit & Feel

The Shortie sits high-rise with a mid-length boyshort leg. Padding extends all the way up the front and back for full coverage in any position. Flat seams never dig in, and the fit stays put while you sleep, stretch, and move. Between sizes? We recommend sizing up for overnight comfort.

Wash & Care

Rinse in cold water after wearing, machine wash cold on a gentle cycle, and air dry. Skip fabric softener and bleach to protect the absorbent layers. Full details live on our Wash & Care page.

Shipping & Exchanges

Orders ship within 1–2 business days, and shipping is free over $50. First pair not fitting quite right? Her Pair covers a free exchange within 45 days, worn pairs welcome. See Exchanges for how it works.

What's Inside

Our Signature 4-Layer Protection System

The body of every Her Bloom period underwear is Bamboo and Spandex, soft with just enough stretch. Inside, our signature 4-layer system absorbs your flow and keeps you comfortable and dry for hours.

1

Gusset Layer

Against Your Skin

Soft, breathable cotton that is gentle on the skin, even on your heaviest day.

2

Absorbency Padding Layer

Holds The Flow

A high-performance core that quickly absorbs and locks in moisture, with no shifting and no bunching.

3

Leakproof Barrier Layer

Keeps You Dry

A protective membrane that prevents leaks and keeps you dry.

4

Outer Fabric Layer

The Finish

Part of the body of the garment, composed of bamboo: our signature material across every pair.

The Shortie (Medium Flow) black boyshort period underwear, worn lying down with a yellow rose
When To Wear It

Made For The Middle Of Your Cycle

The Shortie (Medium Flow) is calibrated for days 3–5, when your flow settles into a steady rhythm and you want comfort you can forget about.

Days 3–5

Wear it on its own as your flow settles, at work, at home, or on the go.

All Day

Coverage that feels like regular underwear from morning to evening.

As Backup

Pair it with a pad, cup, or tampon on unpredictable days for worry-free protection.

Reviews

What Women Are Saying

Customer Reviews

Overall rating: 5.0 / 5 from 6 reviews.

Customer photo review of The Shortie (Medium)

These period underwear boy shorts are incredibly comfortable and have quickly become my favorite pair for lounging around the house. The fabric is soft, breathable, and stretchy without feeling tight or restrictive, and the boy short style provides just the right amount of coverage. They stay in place without riding up and are comfortable enough to wear all day or sleep in. I love that I can relax on the couch, run errands, or unwind at home without constantly thinking about them. Perfect for my lazy girl era.

Jessica G. 5/5

The Shortie (Medium)

These are my favorite to wear at night. Before the cheeky finally came out these are my top tier every night wear on my period. They are so comfortable and breathable and you don’t have to worry about leaking or changing out a tampon at night. They have front to back coverage, you can honestly just wear them as shorts for pjs ( I do) and also long term save you money. If you have been debating on wanting to change over from pads and tampons to period underwear well here is your sign. HerBloom is an amazing company with great views and just wanting to support women on those uncomfy months but we don’t wanna forget about our mamas either ! I know the heavy flow works great for PP mamas. So no matter what flow you have, what phase you are in or where you are at in your pregnancy, her bloom is there for you. I am 5”4 and weight about 130 lbs in the shorties I can wear a small or medium but the medium are more comfortable and not as tight ❤️

Savannah S. 5/5

The Shortie (Medium Flow)

So soft, and the gusset is wide enough I'm not worried about leaks at night, as was a problem with other brands.

Kate Helen D. 5/5 Verified

The Shortie (Medium)

The Shortie is super soft, comfortable, and lasts all night! I'm able to get uninterrupted sleep with no leaks or bathroom trips!

Alex C. 5/5

The Shortie (Medium)

Literal game changer! I have been looking for a pair of period shorts I could wear to bed while I'm on my period and this is by far my favorite. They are super soft and comfortable. They kind of feel like a hug which is nice. I would definitely recommend if you are looking for a pair of period underwear you can wear to bed!

Ashley B. 5/5

The Shortie (Medium)

Good To Know

The Shortie (Medium Flow)

How Long Can I Wear The Shortie (Medium Flow)?

On medium flow days, most women wear The Shortie (Medium Flow) comfortably for up to 12 hours. Listen to your body and change when it feels right for you.

Can I Sleep In The Shortie (Medium Flow)?

You can. The Shortie (Medium Flow) handles lighter nights with ease, and the padding runs all the way up the front and back. For your heaviest nights, we recommend The Shortie (Heavy Flow), which carries our maximum absorbency.

Does It Feel Bulky Like A Pad?

No. All four layers are sewn into a single smooth gusset that feels like regular underwear. There's no shifting, no bunching, and nothing to reposition during the day.

What If The Fit Isn't Right?

Her Pair has you covered. If your first order fits differently than expected, exchange it for a new size, free, within 45 days. Worn pairs are welcome. That's the only honest way to know your fit. Head to Exchanges to start a swap.