Size Guide
Finding your perfect fit is personal. We're here to help you feel confident and comfortable.
Our Fit Philosophy
Comfort isn't one-size-fits-all. Our pieces are designed to move with your body, not against it. If you're between sizes, we recommend sizing up for comfort. And remember, our 7-day return policy means you can try risk-free.
Bra Size Guide
Find your perfect Slein size by measuring your underbust and overbust below. Each size also shows the equivalent standard bra sizes for reference.
| Slein Size | Underbust (inchescm) | Overbust (inchescm) | Equivalent Bra Sizes |
|---|---|---|---|
| S | 24.4-28.3"62.0-71.9 cm | 28-30"71.1-76.2 cm | 30B, 32A |
| M | 28.4-30.3"72.1-77.0 cm | 31-33"78.7-83.8 cm | 30C, 30D, 32B, 32C, 34A, 34B |
| L | 30.4-32.3"77.2-82.0 cm | 34-36"86.4-91.4 cm | 34C, 34D, 36B, 36C |
| XL | 32.4-34.2"82.3-86.9 cm | 37-39"94.0-99.1 cm | 36D, 38B, 38C |
| 2X | 34.3-36.2"87.1-91.9 cm | 40-42"101.6-106.7 cm | 38D, 40B, 40C |
| 3X | 36.3-38.2"92.2-97.0 cm | 43-45"109.2-114.3 cm | 40D, 42B, 42C, 42D |
How to use this chart: Find your underbust measurement (in inchesin cm) in the second column, then check your overbust measurement in the third column. The Slein size that matches is your perfect fit! The equivalent bra sizes show what standard bra sizes fit the same way.
Panty Size Guide
| Size | Waist (inches) | Hip (inches) |
|---|---|---|
| XS | 24-26 | 34-36 |
| S | 26-28 | 36-38 |
| M | 28-30 | 38-40 |
| L | 30-32 | 40-42 |
| XL | 32-34 | 42-44 |
How to Measure
Underbust Measurement
Measure snugly around your ribcage directly under your bust. This determines your band size.
Overbust Measurement
Measure loosely around the fullest part of your bust. The difference between overbust and underbust determines your cup size.
Underbust (Band)
Measure snugly around your ribcage directly under your bust. This is your band measurement and determines your Slein size range.
Overbust (Fullest)
Measure loosely around the fullest part of your bust. Combined with your band measurement, this confirms your perfect Slein size.
Find Your Size
Match both your underbust and overbust measurements to the chart above to find your Slein size. We also show equivalent standard bra sizes.
Get Comfortable
Remember that comfort is personal. If a size feels off, reach out — we're happy to help you find your perfect fit.
Fit Tips
Between Sizes?
Check the equivalent standard bra sizes in our chart. If you find yourself between two Slein sizes, try on both or contact us for personalized guidance.
Still Unsure?
Contact us! We're happy to help you find the perfect fit based on your measurements.
Try Risk-Free
Our 7-day return policy means you can order confidently. We'll help you find the perfect fit.
Fabric Matters
Lace stretches less than modal. Check product descriptions for fabric-specific fit notes.
Measure in Underwear
For the most accurate fit, take measurements without clothes or in form-fitting basics.
Comfort First
If it doesn't feel amazing, it's not the right fit. Don't compromise on comfort.
Need help finding your size?
Get Personal Fit Help