At Blackbird, our tops run slim-fit — snug through the body with a little stretch. Use the chart below, and if you're between sizes or prefer a looser fit, we recommend sizing up.
Size Chart (inches)
| Size | Bust | Waist | Length (crop tops) |
|---|---|---|---|
| XS | 30–31" | 24–25" | 15–16" |
| S | 32–33" | 26–27" | 15.5–16.5" |
| M | 34–35" | 28–29" | 16–17" |
| L | 36–38" | 30–32" | 16.5–17.5" |
| XL | 39–41" | 33–35" | 17–18" |
Length is measured from the shoulder seam to the hem.
How to Measure
Bust: Wrap the tape around the fullest part of your bust, keeping it level across your back.
Waist: Measure around the narrowest part of your natural waistline, just above your belly button.
Length: Measure from the top of your shoulder straight down to where you'd like the top to end.
Tip: Measure over your usual bra/undergarments, and keep the tape snug but not tight.
Fit Notes
- Our tops are slim-fit with stretch — they hug the body without restricting movement.
- Straps on halter and lace-up styles are fixed and non-adjustable, so double-check the bust measurement above before sizing down.
- Crop lengths vary slightly by style — check the individual product description for the exact length of that piece.
- Between sizes? Size up for a relaxed fit, size down for something more fitted.
Still Not Sure?
Email us at contact@blackbirdboutique.shop before you order — we're happy to help you pick the right size, and we'd rather get it right the first time than deal with an exchange.