Flex Disc or Saalt? Key Differences Explained

Key Takeaways:

·        Fit and Feel: The Flex Disposable Disc features a firm polymer rim for a secure fit, while the Saalt Reusable Disc uses soft, medical-grade silicone that gently molds to your shape with your body’s natural warmth. 

·        Long-Lasting Protection: Both discs offer up to 12 hours of wear, and can be worn for mess-free period sex. Flex Disc is disposable, whereas the Saalt Disc can last up to 10 years. 

·        Holistic Period Care: Saalt provides a range of sizes and focuses on sustainability and period equity, making it a holistic choice for women's health needs.

Hey there, wonderful humans navigating the wild ride of periods, postpartum life, or those sneaky bladder leaks that seem to pop up at the worst possible moments. Let’s talk about something real—managing life’s leaks without the stress, the mess, or the constant worry. Whether you’re a teen running between classes, a busy mom juggling a million things, a postpartum warrior reclaiming your body, or someone who just wants to stay active without fear of an unexpected drip, you’ve probably stumbled across reusable menstrual products like Flex Disc and Saalt. Both promise a game-changing approach to period care and leak protection, but which one is truly the right fit for you?

We’re diving deep into the nitty-gritty of Flex Disposable Disc versus Saalt, breaking down the key differences in design, comfort, and functionality to help you make an informed choice. As we’ve seen the good, the bad, and the downright frustrating in personal care products, we’re here to lay it all out with a friendly nudge toward what works best for real life. And full transparency—we’re proud to represent Saalt, a brand that’s not just about premium reusable menstrual cups, discs, and leakproof period underwear, but also about ending those panicked sprints to the bathroom and championing period equity worldwide. Our mission? Less waste, better products that don’t break the bank, and a world where no one’s left behind when it comes to managing life’s leaks. So, let’s unpack this comparison with an open mind and a focus on what matters most to you—comfort, reliability, and a little peace of mind.

Flex Disc vs Saalt Disc: Quick Comparison Snapshot

If you’re weighing Flex Disposabgle Disc and Saalt Disc, both offer comfort, reliability, and support for active lifestyles. They’re top choices in the menstrual disc world, but differ slightly. Here’s a brief rundown to help you decide:

·       Material & Comfort: Flex Disposable Disc uses a slightly firmer, flexible medical-grade polymer for a snug feel, though it may take some getting used to. Saalt Disc is made of softer, medical-grade silicone for a fit that molds to your shape with your body’s natural warmth—great for busy days or exercise. 

·      Capacity & Wear Time: Both promise up to 12 hours of wear. Flex Disposable Disc has a rim diameter of 69 mm and holds about 60 mL. Saalt Disc Regular has a rim diameter of 66 mm, and holds about 50 mL. The Saalt Disc Small has a rim diameter of 56 mm, and holds about 30 mL. Saalt offers two sizes of discs; one for high cervix or larger fornix folk, and one for low cervix or smaller fornix folk. (Because we’re not all the same size.)

·       Ease of Use: Flex Disc’s thin and firm rim aims for beginner-friendliness as the firmer rim can be easier for insertion, but some find it tricky to use at first. Saalt Disc features a finger notch for easier removal, a plus when you need speed or are tired.

·       Sizing Options: Flex Disposable Disc is one-size-fits-most, which works for many but not all. Saalt Disc offers two sizes (small and regular), which can suit a wider range of people, from young people getting their first period to people with post-pregnancy bodies or anyone needing a specific fit.

·       Reusable vs. Disposable: Flex Disposable Disc is one time use product, just like a pad or tampons. Saalt Menstrual Discs are made of medical-grade silicone and last up to 10 years with proper care. (Your planet and pocketbook thank you.)

·       Period Sex: Both the Flex Disc and Saalt Disc can be worn for mess-free period sex. Because your period shouldn’t stop intimacy… unless you want it to. 😉

Both menstrual discs have dedicated fans. Ultimately, it’s about finding what matches your needs—whether that’s convenience, leak protection, or sizing flexibility—so you can keep moving confidently through your day.

How Each Disc Works Inside the Body

Let’s take a closer look at how menstrual discs function once inside. Both options are built to manage your flow, but they vary in fit and feel.

The Flex Disposable Disc is designed to sit in the vaginal fornix, just past the cervix, tucking behind the pubic bone. Its thin, flexible design conforms to your body’s shape. When positioned correctly, you likely won’t feel a thing. There’s a learning curve, but once you master the insertion, it becomes a seamless routine. The firmer rim is a great starter product for those learning menstrual discs. 

In contrast, the Saalt Disc also rests in the fornix but features a softer and thicker rim that flexes with your body for a personalized, comfortable, reliable fit. This extra structure can be especially helpful for heavier flows or during physical activity. The softer rim may take some getting used to when it comes to insertion, especially if you’re new to discs. It sometimes takes a little practice to achieve perfect placement. Interested in how to insert a menstrual disc? We got you. Saalt’s softer rim is great for those who want a comfortable and reliable disc experience.

Both discs require some hands-on involvement for insertion and removal, and improper placement can cause leaks. When properly positioned, they’re effortless and reliable—perfect for busy days or active lifestyles. Ultimately, Flex Disposable Disc is a disc with a firmer rim for easy insertion, while Saalt delivers a secure, locked-in feel. The best choice depends on your comfort preferences and body. Experimenting may help you find the disc that feels like the best fit for your needs.

Materials and Safety: Medical-Grade Silicone vs Polymer

When it comes to menstrual products, materials really matter. Medical-grade silicone has become the gold standard for good reason—it’s hypoallergenic, non-toxic, and body-safe. Used widely in healthcare, this silicone is trusted to minimize irritation, even for those with sensitive skin. It’s highly durable and won’t break down or leach chemicals, offering years of reliable, safe use. Rigorous testing ensures it meets strict safety standards. (National Library of Medicine). Plus, the Saalt Reusable Menstrual Disc lasts up to 10 years with proper use and care. Additionally, Saalt is certified Plastic Negative, meaning they remove more plastic from the environment than they produce in production or supply chain. 

Polymers, a type of plastic blend, are another option, particularly in some discs. They’re usually more affordable and flexible, but they can vary in composition and don’t always offer the transparency or extensive safety data that silicone does. If not labeled or certified clearly, it’s difficult to know exactly what’s in a polymer product. Plastics may also be less durable, with the potential to degrade or release microplastics over time—an important consideration for repeated, intimate use. However, the Flex Disposable Disc is a single-use product like a tampon or pad and is thrown away after each use. 

Ultimately, choosing between silicone and polymer isn’t just about comfort, but also peace of mind. Silicone generally offers more trust and reassurance, especially for  people with sensitive skin or anyone who prefers a body-safe material they can rely on long-term.. It’s about confidence that your product is both safe and long-lasting, so you don’t have to wonder about what’s coming into contact with your body each month. (Harvard Medical School)

Comfort During Exercise, Sleep, and Daily Movement

Let’s face it—everyday life doesn’t stop for periods or leaks. Comfort matters whether you’re exercising, sleeping, or just getting through your day. How do menstrual cups and discs compare when it comes to keeping you comfy and confident?

For exercise, menstrual discs generally have the edge. They sit higher in the vaginal canal, so you’re less likely to feel them while running, spinning, or doing yoga. Menstrual cups are also reliable, but during high-impact activity, some users notice the cup’s presence more. Experience varies by body type and fit, but discs tend to suit active folks better for minimal awareness.

At night, discs are often praised for staying put—even for restless sleepers. They adapt well to your natural movements, reducing worries about leaks or shifting. Cups can also be great for sleep, but getting the right size and fit is key—an ill-fitting cup can lead to leaks or discomfort if you toss and turn. 

Daily movement—errands, meetings, or busy parenting—is all about invisibility and security. A properly fitted cup or disc should be almost unnoticeable. Discs typically feel intuitive and low-profile, making them a favorite for those wanting a “forget it’s there” experience, not to mention they typically hold more fluid than menstrual cups. 

Ultimately, comfort is personal. The best product is the one that fits your body and routines—so a little experimentation may be your best bet.

Postpartum and Bladder-Leak Considerations

Let’s be honest—postpartum life is no small feat. Between sleepless nights, unpredictable bleeding, and surprise bladder leaks, your body is doing double duty to recover and keep up. And while internal options like a menstrual disc can be a game-changer, they don’t always cover the whole picture. Sometimes, you need a partner product that’s just as resilient as you are—and that’s where Saalt’s leakproof postpartum underwear steps in.

During recovery, your pelvic floor is still finding its strength. That means even the most reliable internal products—like menstrual discs—can use a little backup. The Saalt Disc sits high in the vaginal fornix, giving comfortable, flexible protection that adapts to your changing anatomy, while Saalt’s leakproof underwear catches anything your body surprises you with—from postpartum spotting to sneeze leaks. Together, they form a reliable, body-kind system that feels like armor without the bulk.

Where other brands stop at internal solutions, Saalt goes further. Flex discs might handle your period, but they don’t offer that extra safeguard when your body’s needs extend beyond menstrual flow. Saalt’s edge lies in its holistic design for real-life leaks—built for the full postpartum experience, not just your cycle days. The ultra-absorbent layers in Saalt Wear protect against both period overflow and bladder leaks, all while staying breathable, chemical-free, and buttery soft against tender skin.

Whether you’re easing back into yoga, chasing a toddler, or just trying to get through a grocery run without a “whoops” moment, the Saalt system gives you confidence and comfort without compromise. Because postpartum care isn’t one-size-fits-all—it’s about finding a solution that moves with you, supports your recovery, and lets you focus on what matters most: you and your little one.

Making the Right Choice for Your Body and Lifestyle

Let’s wrap this up with some straight talk. Choosing between a Flex Disc and a Saalt Disc isn’t just about picking a name—it’s about finding what fits your life, your body, and your values. If you’re a teen on the go, a busy parent, a postpartum warrior, or actively dodging bladder leaks, Saalt has your back. Our reusable menstrual cups, discs, and leakproof period pants are the perfect trifecta, designed to end those panicked bathroom sprints and awkward sweater-around-the-waist moments. We’re talking premium reusable protection without the premium price tag, crafted sustainably without toxins or PFAs.

As a B-Corp, Saalt isn’t just about products; we’re about purpose. We donate 1% of our revenue to menstrual health, education, and sustainability programs worldwide. We want everyone, from teens to seniors, to get the support they deserve. Whether you’re navigating postpartum recovery or staying active as you age, our range of absorbencies, styles, and sizes adapts to your needs. So, while Flex Disposable Disc might have its perks, Saalt offers a holistic, mission-driven approach to leak protection. Choose what empowers you—choose Saalt for less waste, more comfort, and a community that cares.

 Read Also:

• Menstrual Disc vs Menstrual Cup

• The Best Menstrual Disc: How to Insert Your Saalt Disc for Comfort and Convenience

• Can I Swim on My Period Without a Tampon? Tips & Alternatives

FAQs About Flex Disc and Saalt

What is a Flex Disc?

A Flex Disc is a disposable menstrual disc that sits at the base of your cervix to collect period flow for up to 12 hours. Made of medical-grade polymer, it offers a mess-free period with single-use convenience, but it’s less eco-friendly compared to reusable products.

What is a Saalt Disc?

The Saalt Disc is a reusable menstrual disc made from medical-grade silicone and lasts for years with proper care. It’s sustainable, cost-effective, and designed for comfort. The Saalt Disc comes in two sizes to offer more support and options to users. Saalt also supports global period equity through donations from each sale.

Which one is easier to insert?

Insertion depends on personal comfort and experience. Flex Disposable Discs have a firm rim. Some find that this makes them easy to insert for those new to menstrual discs. Others report that the firmer rim causes internal pressure. Both discs are tucked behind the pubic bone, which may take practice for beginners. Saalt Discs are soft, flexible, and gently mold to your body’s shape with natural warmth. Both insertion and removal become easier after practice. The Saalt Disc has a removal notch for easier removal. Relaxation and lubricant can help with both options.

Which option is better for heavy flow?

Flex Discs have a slightly larger capacity than Saalt Discs of about 10 mL fluid. Because they each differ in makeup and feel, the deciding factor should be insertion, comfort, and removal. They both provide up to 12 hours of protection and Saalt comes in two sizes to suit varying needs.

Which is more comfortable to wear?

Both can be comfortable when inserted correctly. Discs sit higher and don’t use suction. Saalt Discs mold to your form during wear as the medical-grade silicone warms to the natural heat of your body. Many users find Saalt Discs to be the best menstrual disc and very soft and comfortable, especially paired with leakproof underwear.

Sources:

1. Harvard Health Publishing. (2022, October 5) How to choose period products. https://www.health.harvard.edu/blog/how-to-choose-period-products-202210052828

2. National Library of Medicine. (2019, July 16) Menstrual cup use, leakage, acceptability, safety, and availability: a systematic review and meta-analysis. https://pmc.ncbi.nlm.nih.gov/articles/PMC6669309/