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Thinx vs Modibodi vs Speax: What’s the Best Period Panties for Women?

About the Author

Jane Feddersen

Jane is a former DI student-athlete and lifelong health enthusiast. Since graduating from College of Charleston where she played both indoor & beach volleyball, Jane’s spent the last four years building her marketing career with experience in project and partner management. Outside of work, her nutrition certification, dog, travel and yoga flows keep her busy.

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In this Article

In this Article

Jane Feddersen

While we may have all heard of organic tampons and gummy vitamins for PMS, there’s a new category of innovation deserving of your attention that uses surprisingly sophisticated technology: period-proof panties.

 

The concept of period panties has always existed. Traditionally, that phrase referred to the rattiest pair you’ve owned for a decade that you don’t mind “ruining” with leaks and such.

 

With this in mind, Thinx, Modibodi, and Speax have fully reinvented period underwear for the modern age, and in this head to head review, we compare our experience with each in-depth.

Period Underwear Brand Comparison

Here’s a table to help you quickly compare these three prominent period panty brands –  Modibodi vs Speax vs Thinx:

Thinx vs Modi Bodi vs Speax: The Best Period Undies Compared

Products
  • Underwear
  • Active wear
  • Underpants (including shapewear)
  • Active wear
  • Swim
  • Maternity
  • Underwear
  • PricingStarts at $24, up to $90 for setsStarts at $19, up to $160 for bundlesStarts at $28, up to $104 for sets
    Discounts / Promo CodesFree shipping on first order20% off and free shipping on first orderFree shipping on first order
    TechFour-layer technologyThree- and two-layer technologyFour-layer technology
    Capacity10 to 20mL10 to 20mLUp to 40mL
    SizingXXS to 3XL2XS to 6XLXS to 5XL
    Extra featuresOrganic cotton line air (ultra-thin)Seamfree line Vegan line Curvy linePee proof
    Guarantee60 days, free returns30 days for first time buyers60 days, free returns
    Product careRinse after use, wash in a mesh laundry bag on a cold cycle, and hang dry.Wash in a mesh laundry bag, on a cold, gentle cycle then hang dry. No softener or bleach, which can affect the special fabrics.Rinse after use, wash in a mesh laundry bag on a delicate cycle, and hang dry or tumble low. Also no softener or bleach.
    Giving back
  • Ethical and sustainable product development
  • GiveRise
  • Sustainable Period Project
  • Give A Pair program
  • Ethical and sustainable product development
  • GiveRise
  • Website

    Why We Recommend Period Panties

    I was skeptical about using period panties over tampons. But not only do they do a surprisingly leak-proof job, they also can provide a boost in confidence at particular parts of your cycle. Here is where they’ve come in handy for me:

    Before your period starts…

    … but when you are worried that it might – this can give you the insurance you need if you aren’t quite sure when you’ll start your flow.

    While sleeping…

    …they do a great job and I now prefer to wear them at night vs. tampons or pads.

    On the heaviest flow days…

    …period panties offer an extra bit of protection, which translates into a significant boost in confidence. 

    Top 3 period underwear brands

    Thinx is one of the biggest names in the period panty space. Going back to 2014, they’ve been trying to break the taboo around menstrual products by making their underwear sleek, cute, and modern, which is a total departure from what period undies are usually thought to be.

    Thinx offers a slew of different panty styles, with varying materials and absorbency levels.

    Their Classic underwear can usually handle up to 2 regular tampons’ worth of fluid (10mL), and can go up to 4 tampons’ (20mL) worth with their Super products. They also sell a line made with organic cotton and an ultra-thin line called Thinx air.

    Thinx keeps women fresh and dry by using a patented design that has four layers of fabric, each layer with a specific purpose — moisture-wicking, odor-controlling, leak-resistant, and a last layer to hold it all together. This technology is in both their underwear and activewear, which is really handy since staying active is one of the biggest concerns when menstruating.

    Lastly, Thinx applies non-migratory silver that controls odors and the spread of bacteria, making sure that its users stay fresh throughout the day.

    From the Land Down Under comes Modibodi. Bothered by the lack of innovation in women’s period products and underwear, founder Kristy Chong came up with the idea shortly after she gave birth and experienced bladder leak issues.

     

    She started developing the product in late 2013 and took a couple of years to create her patented product. Today, it’s used not only in underwear, but also Modibodi’s activewear, shapewear, swim wear, and maternity underwear.

    Between the three companies, they offer the widest range of sizes from 3XS to 6XL, and absorbency from moisture wicking to heavy overnight (capacities of 10 to 20mL as well).

     

    Like Thinx, Modibodi uses multi-layer fabric technologies called Modifier and Modifier Air Technology™ for their wares, with two to three layers depending on what absorbency the item is designed for. They also use fibers like bamboo, merino, nylon, and microfiber in different parts of their products. Modibodi offers more shopping options by having seam-free, vegan, and curvy lines, catering to people with specific needs and preferences.

     

    Modibodi also has mostly compostable packaging, which is pretty awesome.

     

    It’s also interesting to note that Modibodi sells a breastfeeding singlet for new moms who may experience breast milk leaks—a pretty unique offering in this period panty market.

    Last on the list is Speax (acquired and rebranded from its previous name Icon), which is technically marketed as pee-proof undies rather than period panties, because its sister company Thinx already takes care of the latter.

     

    Since they’re made by the same parent firm, Speax utilizes the same fabric technology as Thinx. In fact, panties from both Speax and Thinx are very comparable, with the exception of absorbency.

     

    Speax vs Thinx: What’s the difference?

    Even though they are both technically owned by the same company, the biggest difference between Speax vs Thinx is that Speax can absorb 2x more than Thinx — up to 8 teaspoons of fluid, or about 40mL. This is probably due to urine flowing at a faster rate and in more volume than menstrual fluid, which makes the Speax capacity more ideal for that purpose. It’s hard to say if Speax and Thinx are actually interchangeable though—their FAQs just refer them to each other when that question comes up.

     

    Both Thinx and Speax are manufactured in a family-run facility in Sri Lanka that observes ethical and sustainable product development.

    Reviews of Thinx, Modibodi, and Speax

    When it comes to “unmentionables,” you best believe women are going to scrutinize everything – especially when it comes to helping out at that time of the month. Since each person will have their own views on MobiBodi, Speax and Thinx, we complied some reviews from women who have used period panties, and what they think:

    Thinx I'm in loveSilvia (Thinx customer) via Facebook
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    They kept me dry and there wasn't any odor. The material is soft. You cannot really tell the difference from wearing non-period panties and THINX. If you're unsure, they offer a 60 day trial. So, if you are not happy, they will give you a refund, but I bet you will keep them and probably buy a second pair 🙂
    Big fan of SpeaxBeth (Speax customer) via Amazon
    Read More
    I have tried the hip huggers and loved them. They make me feel more confident during heavier days. It sounds a lot grosser thinking about cleaning them out and such but it's really weird you barely see anything cleaning them out so it's basically like magic haha. I only got one pair my first try and now I'm buying two more. My friends even love them and we're all different body shapes and period lengths. They have a lot of choices and sizes. If you have bad cramps I also suggest trying them. They have helped me so much.
    Undies that give me my confidence back!Stephanie (Speax customer) via Facebook
    Read More
    I love the freedom of not wearing pads every stinking day *just incase* I sneeze, cough, laugh, jump, sit up, or talk too loud without my legs twisted like a pretzel knot. I'm not sure what type of elastic you use, but please don't change it!!! Whatever they use in common brands of non-icon/non-thinx granny panties that I used to wear, would make me itchy-as-all-get-out!!! Looking forward to buying more colors! Thank you for doing what you do so well!
    Best thing ever.Rajeedah (Modibodi customer) via Amazon
    Read More
    I'm so upset I didn't discover these dooner. The texture is amazing and they truly work as they should. I used these on light days and as a backup to my Lena cup. Best. Underwear. Ever.
    Saving me the embarassmentMarcy (Modibodi customer) via Amazon
    Read More
    I bought these soley for when I go work out- running or when I'm doing cardio. I have had 4 children and any jumping or such pee a little bit, so when I saw an advertisement for these I had to give them a try. I'm so glad I did- it has saved me from having the wet spot in the crotch of my pants when I'm done working out. They are comfortable too!

    The Verdict: What Are the Best Period Panties - Speax, Thinx or Modibodi?​

    Since the price points of the three brands are pretty similar, it really comes down to your needs and intended use case. Here are our recommendations after analyzing the pros and cons in-depth:

     

    Thinx/ Speax offer the most accident protection overall.

    If you’re primarily looking for protection against leakage and/or sweat marks during tough workouts, give Thinx a try. The offer the highest quality period-proof panties out there, so you can know you’re covered in even the most dire of situations.

     

    Thinx offers a 60-day guarantee with free returns, offering the peace of mind to test and see if their panties are comfortable enough to work for your body and lifestyle. 

     

    Check Price →

    Modibodi is the best for women of all shapes and sizes.

    If your size it tricker to shop for, then Modibodi might have the right item for you in their vast inventory. They have panties in sizes from 2 XS to 16 XL! The team at Modibodi really have done a great job creating a range of period panties for women of all sizes, from small to full figured.

     

    Modibodi even has a line of vegan products, so if you are trying to eliminate allergens or animal products from your life, they are the best.

     

    Try Modibodi →

    Frequently Asked Questions (FAQ)

    Period panties are underwear that you use during your menstrual period. They are made with special fabrics that absorb discharge and draw them away from your body, yet lock the moisture in the fabric itself. They’re leak-resistant, but also breathable. So that’s basically magic, right? Actually, it’s science!

     

    These fabric features have been around for some time now as a development of the technology of disposable diapers. However, it took a lot of trial and error to get them in the right combinations and blends to make them the reusable products that they are today.

    For the most part, women use period panties to spare their nicer knickers from potential mess. These new products achieve that and much more. Depending on how heavy your flow is, Thinx, ModiBodi, and Speax all eliminate the need for tampons, pads, and menstrual cups — allowing you to skip an entire step in your Shark Week routine and just jump right into undies. Wearing these reusable panties also reduces your environmental footprint since you’re not consuming menstrual products on a monthly basis.

     

    Conversely, some girls use them as a back-up protection on top of traditional feminine products. You know those days when your flow is just relentless, and you need to wear white. They’d also be more comfortable overall since it’ll feel just like wearing any other pair of undies in your drawer. Lastly, free bleeding is very much a thing, and period panties can help you dip a toe into that movement.

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    About the Author

    Jane Feddersen

    Jane is a former DI student-athlete and lifelong health enthusiast. Since graduating from College of Charleston where she played both indoor & beach volleyball, Jane’s spent the last four years building her marketing career with experience in project and partner management. Outside of work, her nutrition certification, dog, travel and yoga flows keep her busy.

    Learn more
    Jane Feddersen

    Jane Feddersen

    Jane is a former DI student-athlete and lifelong health enthusiast. Since graduating from College of Charleston where she played both indoor & beach volleyball, Jane’s spent the last four years building her marketing career with experience in project and partner management. Outside of work, her nutrition certification, dog, travel and yoga flows keep her busy.
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