Model wears size Medium.
The Shortie (Heavy Flow)
Our bestselling period underwear, built for your heaviest days. 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.
Approximately holds the equivalent of 6 regular tampons. Built for days 1–2 of your cycle and overnight wear.
Fabric & Layers
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.
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.
Gusset Layer
Soft, breathable cotton that is gentle on the skin, even on your heaviest day.
Absorbency Padding Layer
A high-performance core that quickly absorbs and locks in moisture, with no shifting and no bunching.
Leakproof Barrier Layer
A protective membrane that prevents leaks and keeps you dry.
Outer Fabric Layer
Part of the body of the garment, composed of bamboo: our signature material across every pair.
Made For Your Heaviest Days
The Shortie (Heavy Flow) is calibrated for the start of your cycle, when flow is at its peak and you want coverage you don't have to think about.
Wear it on its own through your heaviest flow, at work, at home, or on the go.
Padding runs all the way up the front and back, so you can sleep in any position.
Pair it with a pad, cup, or tampon on unpredictable days for worry-free protection.
What Women Are Saying
Pairs Well With
The Shortie (Heavy Flow)
How Long Can I Wear The Shortie (Heavy Flow)?
On heavy flow days, most women wear The Shortie (Heavy Flow) comfortably for up to 12 hours, including overnight. On your heaviest day, listen to your body and change when it feels right for you.
Can I Sleep In The Shortie (Heavy Flow)?
Yes. The Shortie (Heavy Flow) was built with overnight wear in mind. The padding runs all the way up the front and back, so you can sleep in any position without worrying about leaks.
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.