One Size
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Measure Your Bra Size
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How to Measure Your Bra Size
Believe it or not, 80% of women wear the wrong size bra. The most common mistake is wearing a band size which is too big, and/or a cup size which is too small. Although the average bra size is often quoted as 36C, most people who wear this size should actually be wearing a 34D or 34DD bra. Cup sizes are relative to the band size, so a D cup, for example, is not the same size in every bra. A 32D is the same size as a 34C or 36B, but on a smaller frame. A 28F is actually 2 cup sizes smaller than a 38D. You may not think of yourself as being busty, but in moving to a smaller band size you will find that you need a bigger cup size.
Your bra size changes as your weight fluctuates throughout the seasons and the years. Sometimes you go for so long wearing a specific size that you don't realize it doesn't fit well anymore and you stop noticing the discomfort. If you're looking for a better fit, here's how to find your true bra size.
Important note - the measurements used in the steps of this guide refer to UK bra sizing. Although US bras are theoretically sized according to the same system, there is considerable variation between brands, so if you are in the US you may find you need a bigger band size and/or a smaller cup size than that indicated here. For example, A UK 32E may be equivalent to a US 34DD or even 36D.
Measure Band Size
PROCEDURE
- Wear your best supporting bra. The bra doesn't have to fit perfectly. The objective is to get your breasts to the position that the ideal bra would support, with the weight suspended comfortably. This step is optional, however, so if you can't find a bra with good support, continue with the measurements.
- Measure your band size. Run a tape measure all the way around your body just underneath your breasts and take a measurement in inches. Make sure the tape measure is horizontal and fairly snug. Your arms should be down. Round to the nearest even number. This should be your band size. For instance, if you measured 31 inches, your band size should be 32. If you measured 34.5 inches, your band size should be 34.
Many bra fitting guides will tell you to add four or five inches to your underbust measurement, but this is not correct. The old method was devised in the 1930s when bra design was in its infancy and does not work with modern bras.
Calculate Cup Size
3. Measure your bust size. Measure loosely around the fullest part of your bust in inches (not too tightly or the measurement will be inaccurate). If you don't have a bra, or if the one you have is very poorly fitting, bend over so your back is parallel to the floor and measure around your chest, over your nipples. Round this measurement up to the nearest whole number.
4. Calculate your cup size. Subtract the band size measurement from the bust measurement and determine your cup size as follows: (The cup size calculation may be less accurate for larger cup sizes.)
- 1. less than 1 inch = AA cup
- 2. 1 inch = A cup
- 3. 2 inches = B cup
- 4. 3 inches = C cup
- 5. 4 inches = D cup
- 6. 5 inches = DD cup
- 7. 6 inches = E cup (US DDD)
- 8. 7 inches = F cup (US DDDD)
- 9. 8 inches = FF cup
- 10. 9 inches = G cup
4. Try on a bra with the band size and cup size you've arrived at in these steps. Because there can be wide variations in how bras are manufactured as well as differences between different styles of bras, this size should be starting point.
5. Check the band size. The correct band size is the smallest you can comfortably wear. It needs to be tight enough that the bra is still fairly supportive without weighing down on the straps.
1. You should be able to run your fingers around the inside of the band, but not much more.
2. It should fit on the biggest adjustment, but will probably be too tight if you try to fasten it on the smallest size. Bras are designed to fit like this to leave room for the bra to stretch after you've worn it a few times.
3. If the band is painfully tight, even on the biggest adjustment, then go up a band size (and down a cup size to compensate). For example, if a 32D is too tight, try a 34C.
4. If the band is loose enough for you to be able to comfortably fasten it on the tightest adjustment, try a smaller band (e.g. 32D -> 30DD).
5. Check the cup size. The correct cup size is the biggest you can completely fill out. You should fill out the cups, but not bulge out anywhere.
- 1. Check both the top of the bra and the sides for bulging.
- 2. Make sure the under wire encloses your whole breast and is flush against your rib cage.
- 3. If the cup size is too big, go down a size.
If it is too small, or even if it seems to fit, try on a bigger cup size as well to double check.
Examples Of Best Fitting Bra
Tips
- This measurement applies to the UK, but it can be translated into bra sizes for other countries using an international bra size calculator. US sizing may vary slightly - you may find that you need a bigger band size and/or a smaller cup size in US brands.
- Cup sizes above D tend to vary much less reliably between manufacturers. Some brands go to the next letter of the alphabet for every added inch, while other brands may simply add on the same letter for every inch.
- A well-fitted bra should provide support from the band, not the straps. You should be able to take off the straps and still feel supported by the bra.
- Always try on a bra before you buy, and keep an open mind about your size.
- It is possible to find out your bra size without a tape measure. If you already wear a bra which seems to fit well in the cup, but is roomy around the band, you can go down a band size and up a cup size until you get to a size you can only just fasten - this is the right size. (e.g. 36C -> 34D -> 32DD)
If you have uneven cup sizes, go with the bigger side. You can support the smaller breast by making that shoulder strap slightly shorter, or alternatively you can pad out the cup.
DON'T DO THIS
- As mentioned above, this is only to give you an approximate idea of what size to try on first. Women come in all shapes and sizes, and bra size can be affected by back proportions, breast shape, pectoral muscle mass, and so on. All of these factors can interact to affect your bra size in ways that are impossible to predict.
- Ignore anyone who claims to be able to tell you your size with certainty from your measurements - especially if they tell you to add several inches to your underbust measurement. Just like dress sizes, bra sizing has changed over the years, and the old method does not work for modern bras.
- If you have previously been told your size, but now find that a different size fits better, just wear the size that fits! The fit is more important than the number on the tape measure.
New product introductions from Hothair
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QuikEnergy Princess Seamed One Piece Tank Suit $109.95 "Sporty one-piece plus size tank features scoop-neck at front and back, with contrast coloring at neckline, armholes and princess seams. Flat-lock seams never chafe. Inside is an around-the-body supportive sport bra with sewn in soft cups for extra support and coverage. Conservative leg. Quick-drying, moisture-wicking QuikEnergy is a high-content Lycra that provides excellent support. 50 UPF UV Sun Protection." |
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Seashell Shirred One-Piece Swim Suit $67.46 "With an elegant retro appeal, this shirred front one-piece tank is incredibly flattering with superior control. It elongates and softens your form. The angled sweetheart neckline adds to the feminine appeal. Beautiful angled back straps provide maximum back appeal. Inside is complete support from around-the body, fully-lined QuikShape power mesh. Secure bust support comes from the inner powermesh shelf bra with removable soft cups and soft brushed elastic for no-chafe comfort, making this plus size suit also prosthesis friendly. Conservative leg. 50 UPF UV Sun Protection." |
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Superfit Seamless Bra $29.95 "Seamless perfection in a bra designed exclusively for the plus size woman. Cleverly designed with a 3-hook adjustable back for easy on and off, this smooth and stretchy, soft control bra feels delightfully light. No seams, so no chafing, and with a one inch chest band that stays put. Open cut v shaped detail at center front adds extra feminine charm. The fabric is a highly durable wicking blend that feels like washable silk. The sizing for Seamless products is different than Standard Junonia Sizing.If your body measurements are at the higher end of the size range for a given size, we recommend ordering the larger size.Please reference the Seamless size chart for our recommendation." |
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Superfit Seamless Brief $14.95 "The ultimate in soft and luxurious comfort. This seamless brief is cut for the plus size form with a full, stay-put design with no seams, so no chafing! The fabric is a highly durable, wicking blend that dries quickly for travel and sport, that feels like washable silk! One inch soft, knit-in waistband stays put. This brief will move with you and feel like a second skin. Wear it every day. A touch of cotton is seamlessly knit into the gusset for breath-ability. The sizing for Seamless products is different than Standard Junonia Sizing.If your body measurements are at the higher end of the size range for a given size, we recommend ordering the larger size.Please reference the Seamless size chart for our recommendation." |
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Quilted Comfort Casual Jacket $89.95 "This jacket will be the one you reach for time after time. When the weather is “in between� this cute quilted plus size jacket will take you on errands, walking with friends, to the yoga studio, and more. Flattering vertical diamond quilt pattern in smooth quiet poly is stitched to top-quality, cozy PerfectTemp fleece inside. Wide turn-back cuffs and a mock neck that folds down to frame the face. Two-way front zipper is edged in black binding for an elongating effect in this longer, low-bulk style. " |
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Junowear Soft and Stretchy Bra Top $39.95 "Enjoy the ultimate in bra top comfort. Extra stretchy fabric has a luxurious, brushed finish, and it is easy to pull on and off. Beautifully made from moisture-wicking Supplex, one of the softest and yet toughest materials on the market. We cut this plus size bra top for a full and comfortable fit, slightly higher at the front with a scoop back. The entire bra top is double layered in the main fabric for a secure, yet soft control. Fully covered elastic for no-chafe comfort. Perfect for relaxing, yoga, light control, and casual wear. " |
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QuikWik Soft Control Bra Top $29.95 "Are you looking for a versatile sport bra with gentle support and wicking action? One that you can wear for casual and lounging, as well as low-impact activities like yoga and stretching? This plus size bra top is perfectly cut for comfortable coverage with longer sides and a slightly higher front and scoop back. Outside layer is the four-way stretch of our classic QuikWik fabric, with an around-the body lightweight inner wicking liner. You will adore the comfort. Fully encased no-chafe elastic at the band. No sticking when worn under cotton tees. 50 UPF UV Sun Protection. " |
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Euro Jersey by Terry Bicycle $49.95 "So versatile! This short sleeve shirt has a full-front zipper, for you to layer up or down. Pack this in your panier! Bright fun CitrusZest print also have reflective trim for safety. Road and trail ready with three open stuff rear pockets and a longer tail for on-bike coverage. 100% fast-drying poly with superior sun protection. MYNX UV offers permanent sun protection up to 50 UPF rating. A.M.Y.permanently inhibits the growth of odor causing bacteria, mold, mildew and algae on fabric.Terry sizes run smaller than Junonia, so please order one size larger than usual. " |
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