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The Boxer Brief

The Boxer Brief

$25.00 USD
$25.00 USD $25.00 USD
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A comfy, mid-rise boxer brief made from super soft recycled nylon. Our machine-washable boxer brief period underwear is engineered for regular or light flow days, ideal as a standalone solution or reliable backup for heavy flow days. 

(psst.. we've made some really cool updates to the boxer brief like: an extended gusset, a pad shaped gusset to allow more absorbency and comfort, and a reinforced waistband)

Product Details + Fit

This style was made to stretch. Recycled nylon and a forgiving waistband make these perfect for people that experience bloating or heavy cramping–or that just want a lil' extra comfort on their period. They fit true to size, so we recommend ordering your usual size (if you're in between sizes, size up!)

Fabric + Care

  • Shell: 88% Recycled Nylon, 12% Spandex
  • Lining: 100% Cotton
  • Gusset: 75% Bamboo, 25% Polyester

monthly period underwear are machine washable. Wash on cold with like colors. Hang to dry. It's that simple!

Impact

Switching to period underwear helps divert 4 tampons/pads from landfills every day you choose to use them! (not to mention they save you $ in the long term.) Good for you + good for the planet.

Design

We talked to 250+ people with periods before designing our underwear. These folks had heavy flows, light flows, endo, PCOS, gender dysphoria, cramping, and everything in between. Based on these conversations and surveys, here's what we did:

  • Made an ultra stretchy waistband so you don't feel restricted while bloating
  • Full length boxer to allow for gender inclusion
  • Floating gusset so you can wrap a pad inside the underwear in case of emergency or preference
  • Ultra thin pad, so they feel just like your favorite pair of underwear

Trust us, we got your back when it comes to periods. All day comfort informed by real people with real periods. ☁️

FAQ's

Still need some more info on our underwear? Check out our FAQs page or shoot as an email at hi@shopmonthly.co.

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It's the absorbency for me

Our multi-layered gusset features a cotton top, two layers of absorbing bamboo blend fabric, and a breathable leakproof backing.

Our features

  • Odor-resistant

    Designed to keep you fresh with a cotton layer and bamboo blend for natural odor control

  • Leak-proof

    Our 4-layer gusset is ultra thin, but designed to absorb your flow and prevent leakage

  • Absorbent

    Our boxer brief holds about 25 ml of flow, which is equal to 1 menstrual cup, 3 super tampons, or 5 pads. 

  • Super stretchy

    Ultra stretchy waistband and fabric that adapts to your body, offering a flexible fit that moves with you

Don't just take our word for it

I've had my monthlies for about a year now, and I absolutely love them!

-Delilah

Wearing comfortable, cute, period undies helps you feel better

-Ada

I thought that menstrual underwear was the best it was going to get... until I tried monthly

-Peaches

monthly underwear helps me feel more confident in my body

-Aeja

Planet-friendly

✸

Plastic-free

✸

Gender-inclusive

✸

Real reviews from real people

4.5
Rated 4.5 out of 5 stars
Based on 40 reviews
Total 5 star reviews: 30 Total 4 star reviews: 5 Total 3 star reviews: 2 Total 2 star reviews: 2 Total 1 star reviews: 1
88%would recommend this product
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40 reviews
  • VR
    Victoria R.
    Verified Buyer
    I recommend this product
    Age (optional) 25-30
    Products You Use for Period Management Pads, Tampons, Period Cup
    Flow Level Heavy
    Why did you switch to monthly? Sustainable/Reusable, Easier to Use, Comfortable, Affordable
    Rated 5 out of 5 stars
    4 months ago
    My first period panties!

    I never have tried any period undies before trying monthly and I am so glad I did! I have a very heavy flow and with the most recent news of toxic metals being present in tampons, I really wanted another option besides my menstrual cup. It never leaked and it also never made me feel like I was wearing wet underwear. Highly recommend!

    Was this helpful?
  • AP
    Avery P.
    Verified Buyer
    I recommend this product
    Age (optional) 18-24
    Products You Use for Period Management Pads, Period Underwear
    Flow Level Heavy
    Why did you switch to monthly? Comfortable, Affordable, Sustainable/Reusable
    Rated 5 out of 5 stars
    4 months ago
    sooo comfy & sensory friendly!

    i absolutely love Monthly period boxers and wear them religiously when on my period! i can’t use tampons due to severe endometriosis and these are such a great alternative. they’re so so comfy and cute!

    Was this helpful?
  • MP
    Melissa P.
    Verified Buyer
    I recommend this product
    Age (optional) 25-30
    Products You Use for Period Management Tampons, Pads, Period Underwear
    Flow Level Moderate
    Why did you switch to monthly? Sustainable/Reusable, Affordable, Easier to Use, Comfortable
    Rated 5 out of 5 stars
    5 months ago
    I will be ordering more

    5/5 stars! The fabric is soft and stretchy yet still form fitting so everything's contained. They're super cute on and I'll probably wear them even when I'm not bleeding. Ill be ordering more for sure

    Was this helpful?
  • L
    Lena
    Verified Reviewer
    I recommend this product
    Age (optional) 18-24
    Flow Level Light
    Why did you switch to monthly? Other
    Rated 5 out of 5 stars
    5 months ago
    Amazing!

    This is the absolut best period product that i've ever used. Super comfortable and i have never had any leakage. Would recommend 10 out of 10! :)

    Was this helpful?
  • GP
    Giselle P.
    Verified Buyer
    I recommend this product
    Age (optional) 18-24
    Products You Use for Period Management Pads
    Flow Level Heavy
    Why did you switch to monthly? Comfortable, Sustainable/Reusable, Affordable
    Rated 5 out of 5 stars
    6 months ago
    Amazing I love

    They were recommended to me by a friend and I absolutely love them

    Was this helpful?
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