Quick answer
Choose FUN CUP Size A (20 ml) for lighter flow days or first-time users, and Size B (30 ml) for heavier flow or if you have a higher cervix. Both are made from medical silicone and offer up to 12 hours of protection.
Why size matters for your first cup
A menstrual cup that fits well is comfortable, leak-free, and easy to insert and remove. The wrong size can cause discomfort or leaks, which is why understanding the volume and dimensions is key. FUN CUP offers two sizes, but the choice isn't just about flow—it also depends on your anatomy and experience.
Trade-offs to consider
Size A is smaller and may be easier to insert for beginners, but it holds less (20 ml), so you might need to empty it more often on heavy days. Size B holds more (30 ml) but is slightly larger, which could be less comfortable if you have a low cervix or are new to cups. Neither size is universally 'best'—the right choice depends on your body and period.
Decision rules for your first FUN CUP
- Flow volume: If your heaviest day requires changing a pad or tampon every 4 hours or less, choose Size B (30 ml). For lighter flow, Size A (20 ml) is sufficient. Estimate your flow with a pad or tampon test over one cycle.
- Cervix height: If you can reach your cervix with a finger during your period, you have a low cervix—Size A may be more comfortable. If you cannot easily reach it, Size B is a better fit. Check your cervix height mid-cycle before buying.
- Experience level: First-time cup users often find Size A easier to insert and remove due to its smaller size. If you are comfortable with insertion, Size B is fine. Start with Size A if you are nervous about the learning curve.
Product facts
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FUN CUP SIZE A: 20 ml volume, for lighter days, medical silicone, easy to insert and remove, up to 12 hours protection. The smaller capacity makes Size A a good starting point if you have a light to moderate flow or are trying a cup for the first time.
FUN CUP SIZE A
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FUN CUP SIZE B: 30 ml volume, for lighter days, medical silicone, easy to insert and remove, up to 12 hours protection. The larger capacity of Size B suits heavier flow days or those who prefer fewer changes, but it may feel bulkier for some users.
FUN CUP SIZE B
Who should choose which size
Best for
- Size A: Beginners, light to moderate flow, low cervix, or those who want a smaller cup for comfort.
- Size B: Heavier flow, higher cervix, or experienced cup users who prefer fewer changes.
Not for
- Size A: Not ideal for very heavy flow days unless you are willing to empty it more often.
- Size B: Not recommended if you have a very low cervix or are extremely sensitive to size.
