The +4 bra sizing method is a popular technique for finding a more comfortable and accurate bra fit, especially for women who find standard sizing too tight. It involves adding four inches to your underbust measurement to determine your band size and then using your bust measurement to find the correct cup size, aiming for a snug yet comfortable band.
Understanding the +4 Bra Sizing Method: A Guide to Better Fit
Many women struggle with finding the perfect bra. The band feels too tight, or the cups don’t quite sit right. This is where the +4 bra sizing method comes into play. It’s a widely used approach designed to address common fitting issues and help you discover a bra that feels truly comfortable and supportive.
Why Does the +4 Method Work?
The traditional method of measuring for a bra can sometimes lead to a band that’s too constricting. This is often because our bodies naturally expand and contract throughout the day, and a bra measured when you’re at your smallest might feel uncomfortable later. The +4 method accounts for this natural fluctuation.
It’s believed that the underbust measurement taken when you’re relaxed might not reflect the reality of wearing a bra, which can slightly compress the ribcage. By adding four inches, the method aims to simulate the fit of a bra that’s broken in, offering a more forgiving and comfortable band size. This can be particularly helpful for those who find standard band sizes dig in uncomfortably.
How to Measure Using the +4 Method
Following the +4 bra sizing method is straightforward. You’ll need a soft measuring tape and a mirror to ensure accuracy.
Step 1: Measure Your Underbust
- Stand up straight and exhale.
- Wrap the measuring tape snugly around your ribcage, directly under your bust line.
- Ensure the tape is level all the way around your body.
- Record this measurement in inches. Let’s call this your "raw underbust measurement."
Step 2: Calculate Your Band Size
- Take your raw underbust measurement.
- Add four inches to this number.
- Round this result to the nearest even number (e.g., if you get 30.5, round up to 32; if you get 31.5, round up to 32). This even number is your calculated band size.
- For example, if your raw underbust measurement is 30 inches, adding 4 inches gives you 34 inches. So, your band size is 34.
- If your raw underbust measurement is 32 inches, adding 4 inches gives you 36 inches. Your band size is 36.
Step 3: Measure Your Bust
- While still standing, wrap the measuring tape around the fullest part of your bust. This is usually across your nipples.
- Make sure the tape is not too tight and is level.
- Record this measurement in inches. Let’s call this your "full bust measurement."
Step 4: Determine Your Cup Size
- Subtract your raw underbust measurement from your full bust measurement.
- The difference in inches will correspond to your cup size. Here’s a common guide:
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0-1 inch difference: AA cup
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1-2 inch difference: A cup
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2-3 inch difference: B cup
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3-4 inch difference: C cup
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4-5 inch difference: D cup
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5-6 inch difference: DD (or E) cup
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6-7 inch difference: DDD (or F) cup
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And so on, with each additional inch typically representing the next letter in the alphabet.
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For instance, if your full bust measurement is 37 inches and your raw underbust measurement is 30 inches, the difference is 7 inches. This would suggest a DDD (F) cup.
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The +4 Method vs. Standard Sizing
It’s important to understand how the +4 method compares to standard bra sizing. Standard sizing typically uses the raw underbust measurement directly for the band size, often rounding to the nearest even number. The +4 method, by adding those extra inches, aims for a looser band fit from the start.
| Measurement Type | Standard Method Example (Raw Underbust = 30") | +4 Method Example (Raw Underbust = 30") |
|---|---|---|
| Underbust | 30 inches | 30 inches |
| Band Size Calc. | 30 inches (rounds to 30 or 32) | 30 + 4 = 34 inches |
| Full Bust | 37 inches | 37 inches |
| Bust-Underbust | 7 inches (DDD/F cup) | 7 inches (DDD/F cup) |
| Resulting Size | Likely 30DDD or 32DDD | Likely 34DDD |
As you can see, the +4 method often results in a larger band size and the same cup size compared to standard measurements. This can be beneficial if you find standard bands too tight.
When to Use the +4 Method
The +4 bra sizing method is particularly useful for:
- Women who find standard bra bands dig in or feel constricting.
- Individuals who are between band sizes in standard measurements.
- Those experiencing discomfort with their current bras.
- Finding a more comfortable fit for everyday wear.
However, it’s not a universal solution. Some women may find the +4 method results in a band that’s too loose. It’s always best to try on bras and see what feels most comfortable and supportive for your unique body shape.
Tips for a Perfect Bra Fit
Beyond measurements, several other factors contribute to a great bra fit:
- Center gore: The part between the cups should lie flat against your sternum.
- Straps: They should stay in place without digging into your shoulders.
- Cups: Your breasts should be fully contained within the cups, with no spillage or gaping.
- Band: It should be snug and parallel to the floor, providing support. You should be able to fit two fingers comfortably underneath.
- Underwire: If your bra has underwire, it should encircle your breasts without poking or digging into your breast tissue.
Frequently Asked Questions About Bra Sizing
### How do I know if my bra fits correctly?
A well-fitting bra will have a band that is snug and parallel to the floor, offering support without digging. The cups should fully contain your breasts without spillage or gaping, and the straps