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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 54 reviews
Total 5 star reviews: 39 Total 4 star reviews: 7 Total 3 star reviews: 4 Total 2 star reviews: 2 Total 1 star reviews: 2
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85%would recommend this product
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54 reviews
  • AA
    Amanda A.
    Verified Buyer
    I recommend this product
    Age (optional) 31-42
    Products You Use for Period Management Pads
    Flow Level Heavy
    Why did you switch to monthly? Comfortable, Affordable
    Rated 5 out of 5 stars
    21 hours ago
    Definitely like the name

    The material is very soft. I haven’t used it yet for my period.

    Was this helpful?
  • JH
    Jessica H.
    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, Easier to Use, Convenient
    Rated 5 out of 5 stars
    3 days ago
    So comfy!

    Best pair of briefs! They are so comfy and easy to use. Would definitely get a second pair soon!

    Was this helpful?
  • PO Profile picture for paey o.
    paey o.
    Verified Buyer
    I recommend this product
    Age (optional) 25-30
    Products You Use for Period Management Disc, Period Underwear
    Flow Level Moderate
    Why did you switch to monthly? Comfortable, Sustainable/Reusable, Affordable
    Rated 5 out of 5 stars
    1 week ago
    LUV!!!!!

    Been using a disc & period underwear combo for years. had many different types from knix but most didn’t have the gusset in the right spot & weren’t v comfortable . After wearing these I immediately bought 3 more pairs! Super comfortable & great fit ! I do wish the bundles had an option to do 1/2 &1/2 instead of just one color. Hope to see more colors in the future !!

    Was this helpful?
  • S
    Sydney
    I recommend this product
    Age (optional) 18-24
    Products You Use for Period Management Period Cup, Period Underwear
    Flow Level Light
    Why did you switch to monthly? Sustainable/Reusable, Affordable, Gender Affirming
    Rated 5 out of 5 stars
    1 week ago
    Huge fan of these

    I searched high and low for period underwear that is sustainably made and inclusive and could not find any good options anywhere until i found Monthly - i absolutely love the boxers, they are so so comfy, don’t feel like a diaper, and work really well.

    Was this helpful?
  • FC
    Faith C.
    Verified Buyer
    I recommend this product
    Age (optional) 18-24
    Products You Use for Period Management Pads, Tampons, Period Underwear
    Flow Level Heavy
    Why did you switch to monthly? Sustainable/Reusable, Comfortable, Affordable
    Rated 5 out of 5 stars
    3 weeks ago
    First time period underwear user

    I was super nervous to try period underwear but after my endometriosis surgery, it became a must have. I loved monthly’s mission and the checker print match my bedding so I had to get it. They are SO comfy and I was able to sleep in them without the discomfort of a pad shifting around. I definitely hope to get more in the future!

    Was this helpful?