Firm Menstrual Cups — A Put A Cup In It Guide

If you’re looking for firm menstrual cups, you’ve come to the right place. Choosing a cup with the correct firmness for your body can make a huge difference in your comfort and the effectiveness of the cup.

Average or average firm cups are better for new users because they take little to no coaxing or manipulation to open once inside. Firmer cups also tend to better for those who experience slipping down during wear. If you’re a very active person you will want an average firm or firm cup to prevent your muscles from pushing the cup out during exercise.

We suggest taking our Menstrual Cup Quiz before purchasing a cup.

Click the top of each column to sort by brand, length, diameter, firmness, or capacity.

Brand Size Length Diameter Capacity Stem Sizing / Misc Features Firmness
Keeper A 2.13″ 1.81″ 21 ml 1″ Aft Childbirth / Rubber 5 +
Keeper B 2.05″ 1.73″ 25 ml 1″ B4 Childbirth / Rubber 5 +
LadyCup Small 1.81″ 1.57″ 21 ml .75″ Hollow Round <25 5
LadyCup Large 2.09″ 1.81″ 34 ml .51″ Hollow Round >25 or After Childbirth 5
LENA Small 1.81″ 1.57″ 25 ml Solid Flat B4 Childbirth (lt-med flow) 4
LENA Large 2.00″ 1.77″ 30 ml Solid Flat Aft Childbirth (med-hvy flow) 4
Lunette 2 2.00″ 1.80″ 30 ml .8″ Solid Flat Normal-Heavy Flow 4
MeLuna S 1.77″ 1.50″ 15 ml .47″ Stem, .31″ Ball, or .39″ Ring Classic 4 / Soft 2 / Sport 5 TPE Variable. See left.
MeLuna M 1.89″ 1.61″ 20 ml .51″ Stem, .35″ Ball, or .47″ Ring Classic 4 / Soft 2 / Sport 5 TPE Variable. See left.
MeLuna L 2.00″ 1.73″ 24 ml .59″ Stem, .43″ Ball, or .59″ Ring Classic 4 / Soft 2 / Sport 5 TPE Variable. See left.
MeLuna XL 2.20″ 1.85″ 30 ml .59″ Stem, .35″ Ball, or .51″ Ring Classic 4 / Soft 2 / Sport 5 TPE Variable. See left.
MeLuna Shorty S 1.38″ 1.50″ 8 ml .47″ Stem, .28″ Ball, or .39″ Ring Classic 4 / Soft 2 / Sport 5 TPE Variable. See left.
MeLuna Shorty M 1.50″ 1.61″ 10 ml .51″ Stem, .28″ Ball, or .39″ Ring Classic 4 / Soft 2 / Sport 5 TPE Variable. See left.
MeLuna Shorty L 1.61″ 1.73″ 14 ml .55″ Stem, .28″ Ball, or .43″ Ring Classic 4 / Soft 2 / Sport 5 TPE Variable. See left.
MeLuna Shorty XL 1.73″ 1.85″ 16 ml .59″ Stem, .31″ Ball, or .43″ Ring Classic 4 / Soft 2 / Sport 5 TPE Variable. See left.
Merula One Size 1.54″ 1.81″ 38 ml 2.83″ Ladder (2.4″ or 1.9″ trimmed) 1.57″ Rim (body is wider) 5
MonthlyCup M 2.16 “ 1.69 “ 22 ml 2.83″ Ladder (2.4″ or 1.9″ trimmed) 0.39″ 5
MonthlyCup L 2.16 “ 1.85 “ 34 ml 2.83″ Ladder (2.4″ or 1.9″ trimmed) 0.39″ 5
XO Flo One Size 2.16″ 1.77″ 38 ml 1.22″ Ball Taper Internal rim 4
Yuuki 1 1.93″ 1.61″ 25 ml .71″ Hollow Round Before Childbirth 5
Yuuki 2 2.20″ 1.81″ 37 ml .71″ Hollow Round >28 or After Childbirth 5
Yuuki Soft 1 1.93″ 1.61″ 25 ml .71″ Hollow Round Before Childbirth 4
Yuuki Soft 2 2.20″ 1.81″ 37 ml .71″ Hollow Round >28 or After Childbirth 4

Unless otherwise noted, all cups are made from medical grade silicone. Rubber cups are quite firm and TPE ((thermoplastic elastomer)) cups are safe for those with silicone allergies. Capacity is to holes when known. Please note that inclusion in this chart does not equal an endorsement.

Cups can also be compared side-by-side on our Menstrual Cup Comparison Chart and Menstrual Cup Firmness Guide.

Should you have any questions, please feel free to reach out for help in our private Facebook Group.

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