Menstrual Disc Comparison Chart

Menstrual Disc Comparison Chart

Click the top of each column to sort by brand, measurement, or feature.

Brand Size Rim Diameter Shape Capacity (Listed) Material Reusable? Misc
Flex OS 0.31″ 2.76″ Round 30 ml BPA Free Polymer No Makes Softdisc
Lumma Unique S 0.24″ 2.09″ Round 30 ml Silicone Yes Has Silicone String
Lumma Unique M 0.24″ 2.48″ Round 55 ml Silicone Yes Has Silicone String
Lumma Unique L 0.24″ 2.68″ Round 60 ml Silicone Yes Has Silicone String
Nixit OS 0.39″ 2.76″ Round 70 ml Silicone Yes
Softdisc OS 0.31″ 2.76″ Round 30 ml BPA Free Polymer No Made by Flex
Ziggy OS 0.28″ 2.99″ Ergonomic 76 ml Silicone Yes Directional Insert

Menstrual Disc Comparison Chart (Metric)

Brand Size Rim Diameter Shape Capacity (Listed) Material Reusable? Misc
Flex OS 8 mm 70 mm Round 30 ml BPA Free Polymer No Makes Softdisc
Lumma Unique S 6 mm 53 mm Round 30 ml Silicone Yes Has Silicone String
Lumma Unique M 6 mm 63 mm Round 55 ml Silicone Yes Has Silicone String
Lumma Unique L 6 mm 68 mm Round 60 ml Silicone Yes Has Silicone String
Nixit OS 10 mm 70 mm Round 70 ml Silicone Yes
Softdisc OS 8 mm 70 mm Round 30 ml BPA Free Polymer No Made by Flex
Ziggy OS 7 mm 76 mm Ergonomic 76 ml Silicone Yes Directional Insert

All current discs on the market are latex free. Capacity (with the exception of Flex and Softdisc) may be overstated by the brands, as this type of product compresses considerably in the vaginal canal. Please note that inclusion in this chart does not equal an endorsement.

Additional Resources:

Looking for our Menstrual Cup Comparison Chart? Click here for the original and here to see it in metric!

Amanda Hearn

Amanda Hearn is a self-taught graphic designer, website jack-of-all trades (ish), writer, and co-founder of Put A Cup In It. In her free time she enjoys gaming, great food, and making memories with her three rapidly aging children.

5 Comments

  • Is there any way you could add the firmness of each disk and the price onto the chart? That is really what ive been looking for and i cant find it anywhere.

    • I can’t speak to all the other brands, but I use Nixit and it is very very soft and flexible. It’s around $50 US and they will refund your money if you decide it’s not for you after 3 cycles which I thought was cool and made me feel more comfortable with giving it a shot. I tried it after being a cup user for years but having cup comfort problems after having a baby. I love Nixit, am definitely converted! It’s way more comfortable even than cups.

    • I just got one and I’m assuming it would have to be cut off for period sex. Which is disappointing because I like the string.

  • Alright so I am new to “alternative period products”. I did some reading and decided to try the flex disc. (I’m not too worried about blood if it’s truly a 12hr-ish wear) getting it in and in correct position- no problem. Getting it out -OMG I had to go to urgent care and they didnt even know what it was 🤦‍♀️ needles to say, it apparently suctioned to my cervix. Now, I feel 1 vagina emergency is enough to deal with for me. I did love my experience until time to get it out. I didn’t feel it and had no issues getting it in. With that being said- what are your thoughts on the lumma unique? Does the string help enough to prevent another disaster?

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