Flex Cup Vs. Diva Cup – Which Menstrual Cup Is Right for You?

Are you considering switching to a menstrual cup, but not sure which brand to choose? With so many options on the market, it can be overwhelming to decide. Two popular brands are the Flex Cup and the Diva Cup. Both brands offer unique features that cater to different needs. Now, we will compare Flex vs. Diva Cup and give you the low-down on some other popular period products on the market today. 

What Is A Menstrual Cup?

A menstrual cup is a reusable device that collects menstrual fluid. It is typically made of medical-grade silicone or rubber and is inserted into the vagina like a tampon. Unlike tampons and pads, menstrual cups do not absorb the fluid, but instead, catch it in a cup-shaped container. Menstrual cups are eco-friendly, cost-effective, and can last up to 10 years with proper care.

Advantages of Using a Menstrual Cup

  • Environmentally friendly
  • Cost-effective
  • Comfortable
  • Can be worn for up to 12 hours
  • Reduces the risk of toxic shock syndrome (TSS)
  • Reduces menstrual odor

With the basic knowledge of menstrual cups, let’s move on to the comparison between the Flex Cup and the Diva Cup.

A menstrual cup is a small, bell-shaped device made of medical-grade silicone or latex rubber that is designed to be inserted into the vagina during menstruation to collect menstrual fluid. It is a reusable and eco-friendly alternative to disposable pads and tampons.

When using a menstrual cup, it is important to choose the right size and to follow proper insertion and removal techniques. Menstrual cups come in different sizes based on age, vaginal tone, and flow intensity. To insert a menstrual cup, one must first fold the cup and then insert it into the vagina. After insertion, the cup should open up and create a seal to prevent leaks. The cup can be worn for up to 12 hours before needing to be emptied and cleaned.

One of the primary benefits of using a menstrual cup is its sustainability. Unlike disposable pads and tampons, which contribute significantly to landfill waste, menstrual cups can last for several years and generate very little waste. In addition, menstrual cups are cost-effective in the long run since they can be reused for multiple menstrual cycles.

Many people also find menstrual cups more comfortable than traditional menstrual products. Because the cup sits inside the vagina rather than being attached to the outside of the body, it can be less noticeable and more comfortable during physical activity such as exercise or swimming.

However, menstrual cups may not be suitable for everyone. Some people may experience discomfort or difficulty with insertion and removal, and those with certain medical conditions such as an IUD or pelvic organ prolapse should consult with their healthcare provider before using a menstrual cup.

Flex Cup

The Flex Cup is a newer menstrual cup brand that was developed in 2018. Its design is unique compared to other menstrual cups on the market. The Flex Cup has a patented pull-tab design that makes removal easier and less messy. The cup also has a soft, flexible rim that conforms to your body for maximum comfort.

Features of the Flex Cup

  • Patented pull-tab design for easy removal
  • Soft, flexible rim for maximum comfort
  • Adjustable stem for a customized fit
  • Made of medical-grade silicone
  • Available in two sizes: Slim Fit and Full Fit

Pros of the Flex Cup

  • Easy to remove
  • Comfortable fit
  • Can be worn during intercourse
  • Comes with a storage pouch

Cons of the Flex Cup

  • Higher price point compared to other menstrual cups
  • Some users may find the pull-tab uncomfortable or difficult to use

Diva Cup

The Diva Cup is one of the most popular menstrual cup brands on the market. It has been around since 2003 and has a loyal following. The cup is made of medical-grade silicone and is available in two sizes: Model 1 for women under 30 who have not given birth vaginally, and Model 2 for women over 30 or those who have given birth vaginally.

Features of the Diva Cup

  • Made of medical-grade silicone
  • Available in two sizes: Model 1 and Model 2
  • Comfortable fit
  • Can be worn for up to 12 hours

Pros of the Diva Cup

  • Affordable price
  • Established brand with a loyal following
  • Available in stores and online
  • Comes with a storage pouch

Cons of the Diva Cup

  • Some users may find it difficult to insert
  • May leak if not inserted properly
  • No adjustable stem

Flex Cup vs Diva Cup: Which One Is Right for You?

When comparing Flex Cup vs Diva Cup, it ultimately comes down to personal preference. Here are some factors to consider:

  • Price: The Flex Cup is more expensive than the Diva Cup, but it does come with unique features like the pull-tab design.
  • Comfort: Both cups are comfortable, but the Flex Cup’s soft, flexible rim may be more comfortable for some users.
  • Size: If you are under 30 and have not given birth vaginally, the Diva Cup Model 1 may be a better fit for you. If you are over 30 or have given birth vaginally, the Diva Cup Model 2 or the Flex Cup Full Fit may be a better fit.
  • Ease of use: The Flex Cup’s pull-tab design makes removal easier, while some users find the Diva Cup difficult to insert.

So, which menstrual cup should you choose? Ultimately, it depends on your personal preferences and needs. If you’re someone who values comfort during insertion and removal, the Flex Cup may be the better option for you. It’s flexible rim and pull tab make it easier to use, especially for those with a high cervix or weaker pelvic muscles. However, if you’re someone who prioritizes leak protection and doesn’t mind a firmer rim, the Diva Cup may be a better fit. It has a proven track record of preventing leaks and is well-suited for those with an average to low cervix.


Both the Flex Cup and the Diva Cup are great options for a menstrual cup. They have different features that cater to different needs. When deciding between Flex Cup vs Diva Cup, consider your personal preferences and needs to make the best decision for you. Both brands contribute to reducing waste in landfills and oceans. Happy menstruating!