Style Guide
Bra Size Chart
Eby Size
XS
S
M
L
XL
SDD
MDD
LDD
XLDD
2XLDD
Traditional Sizes
32A, 32B, 32C
32D, 34A, 34B, 34C
34D, 36A, 36B, 36C
36D, 38A, 38B, 38C
38D, 40B, 40C, 40D
32DD, 32DDD, 32G, 34DD, 34DDD
34G, 36DD, 36DDD
36G, 38DD, 38DDD, 38G
40DD, 40DDD, 40G
42C, 42D, 42DD, 42DDD, 42G, 44D, 44DD, 44DDD
Best For
Petite frames
Small to medium frames
Medium frames (most common)
Larger frames
Larger frames, fuller busts
Smaller frames, fuller busts
Medium frames, fuller busts
Larger frames, fuller busts
Extended frames, fuller busts
Extended sizes
Find Your Bra Size
Find Your Band Size
Wrap the tape measure around your chest, just beneath the breasts.
Use the chart, find your band size.
Band Size / Measurement
Find Your Cup Size
Wrap the measuring tape around your body at the fullest part of your bust. This is your bust size.
Bust size minus band size = cup
Cup Size / Bust-Band Difference
Fix Common Bra Fit Problems
Straps Slip
Tighten straps first. If they still fall, try a smaller band size.
Band Digs In
Try a larger band size. New bras should start on loosest hook.
Cups Overflow
Go up one cup size or try a style with more coverage.
Bustline Sags
Tighten straps or try a more supportive style like Pain-Free T-Shirt.
Band Rides Up
Loosen straps first. If still rides up, try a smaller band size.
Sides Buldge
Cup too small. Go up one cup size or try more coverage style.
Fix Common Bra Fit Problems
Straps Slip
Tighten straps first. If still slipping, try a smaller band size.
Bands Dig in
Try a larger band size. New bras should start on loosest hook.
Cups Overflow
Go up one cup size or try a style with more coverage.
Bra Rides Up in Back
Loosen straps first. If still rides up, try a smaller band size.
Sides Buldge
Cup too small. Go up one cup size or try more coverage style.
Bustline Sags
Tighten straps or try a more supportive style like Pain-Free T-Shirt.
Style Comparison
Each EBY style is designed for different needs and preferences. Use this comparison to find the features that matter most to you - whether you prioritize maximum support, all-day comfort, or versatile style options.
SHOP ALL BRAS
Fit Note
Straps
Lift & Shape
Padding
Underwiring
Pain-Free T-Shirt Bra
Runs large
Adjustable
Maximum lift
Molded push-up
SmartSilicone
One piece
Contour Bra
True to Size
Adjustable
Racerback
Maximum lift
Molded push-up
Wireless
Relief
Bra
True to Size
Adjustable
Gentle lift
Removable pads
Soft wire
Support Bralette
Runs Small
Adjustable
Wide for Plus Sizes
Natural lift
Removable pads
Wireless
Sheer Bralette
True to Size
Fixed
Natural shape
None
Wireless
Wireless Bralette
True to Size
Fixed
Natural shape
Removable pads
Wireless
Panty Size
Size
XS
S
M
L
XL
1X
2X
3X
4X
Full Hip (in)
33-35
36-38
39-41
42-44
44-47
48-50
51-53
54-56
57-60
Waist (in)
23-25
25-28
28-30
31-34
34-36
37-39
39-41
41-43
43-45
Pants
00-2
2-4
6-8
10-12
14-16
16-18
18-20
22-24
26-28
What People Are Asking
How do I know which EBY size to order?
Use our size chart to convert your traditional bra size to EBY sizing. If you wear a 34C, that's EBY size M. Check our style-specific fit notes since some bras run differently.
What materials are used in your packaging?
Check the style-specific fit notes first. Pain-Free T-Shirt runs large (size down), Support Bralette runs small (size up). For other styles, try sister sizing or call us for guidance.
How long does EBY microfiber take to break in?
EBY bras adapt to your body shape in 2-3 wears. They may feel snug initially but will conform to your unique shape for a custom fit.
Can I exchange if the size doesn't fit?
Yes. Contact our fit experts at 833-720-0070 or seamlesssupport@join-eby.com within 30 days. We'll help you find the right size.
How should I care for my EBY bras?
Hand wash or use delicate cycle to maintain the microfiber technology and fit. Start new bras on the loosest hook and tighten over time as they stretch.
We're here to help you find your perfect fit.
Our fit experts have helped thousands of women find their perfect EBY size. We're here to answer questions and provide personalized recommendations.