Saalt vs. Thinx: Which Period Underwear is Comfortable and Protective?
When I first started looking into period underwear, Saalt and Thinx were the two brands I kept hearing about. Honestly, I wasn’t totally sure which one was the “best” — both had their fans and seemed to have good options.
I wanted something that was not only comfortable but also safe and sustainable, and I wasn’t sure if either brand fully checked all those boxes. So, I decided to try both myself to see how they actually compared. What I found surprised me in a few important ways.
If you want something that feels like your regular underwear… Saalt
Comfort is everything when it comes to period underwear. Saalt’s Leakproof Seamless Briefs feel super soft and stretchy, and thanks to their seamless design, they don’t pinch or bunch up.
Thinx has some good options, but honestly, some of their underwear felt thicker and a bit bulky for daily wear. If you want something you can forget you’re even wearing, Saalt’s barely-there feel wins hands down.
If you want thin, fast-drying protection that actually stays dry… Saalt
Both brands do a good job absorbing leaks, but Saalt’s patented gusset technology really impressed me. It’s the thinnest and driest gusset out there, which means it dries faster and stays dry longer.
Whether you’re on your heavier days, need something for light bladder leaks, or just want backup protection with your cup or disc, Saalt feels lighter and less bulky. Thinx’s gusset is thicker and can feel a little heavier, which might not be ideal if you’re on the go all day.
If you want underwear that’s not treated with PFAS… Tie
Safety is a big deal when it comes to something you wear all day and night. Both brand’s underwear is made with OEKO-TEX certified fabrics and isn’t treated with PFAS.
They share their testing results openly, which I really appreciate. It’s nice to know what’s in your underwear and what’s not, right? For me, that peace of mind makes both brands stand out.
If you want simple, sleek styles that actually look like underwear… Saalt
Saalt keeps things modern and minimalist with clean lines and inclusive sizing.
If you’re like me and prefer your period underwear to look and feel like your everyday favorites—nothing flashy or “period specific”—Saalt’s simple, sleek styles will be your vibe.
If you want to support a female-led brand that’s serious about sustainability… Tie
Both Saalt and Thinx offer period solutions that are better for the environment, but I love that Saalt takes it a step further by offering styles made with sustainable materials — they’re whole Lace & Mesh Collection is made of post-consumer recycled water bottles!
Plus, Saalt’s 1% give-back policy reserves a portion of every single purchase for impact initiatives.
If you want period underwear that fits your lifestyle… Saalt
At the end of the day, choosing period underwear is about what fits your lifestyle and what feels good in your body. Saalt’s focus on comfort, functionality, style, and sustainability makes it a perfect choice for anyone wanting safe, reliable, and eco-friendly period care.
Their patented gusset tech means you’re getting the thinnest, driest, and safest option out there. Plus, supporting a brand that’s genuinely committed to giving back just feels good.
The Bottom Line: Saalt Brings Comfort, Style, and Sustainability All in One
Both Saalt and Thinx have helped bring period underwear into the mainstream, but Saalt stands out with styles for every activity, the comfiest fit, and the thinnest and driest gusset technology on the market.
If you want period underwear that keeps you comfortable, dry, and confident—while also supporting a brand that cares about people and the planet—Saalt is my pick.