We obsess over fit. With every piece we make, we do multiple rounds of fittings on the same fit model to ensure that the fit is perfect and consistent across styles. Sizes 00-14 are fit to a size 6 and sizes 14W-20W are fit to a size 16W.

We recommend buying true to your size using the below size chart as a guide. However, some styles are purposefully cut differently to accommodate a range of body shapes and sizes. To make selecting a size easier, we’ve included detailed fit notes and individual size chart on each of our product pages.

If you have any questions about fit or need help selecting your size, please don’t hesitate to call us at (212) 979-2229 or email us at info@ofmercer.com.

Size Chart (in inches)

Straight Sizes (fit to size 6)

Size Bust Waist Hip
00 XS 32 24 34
0 33 25 35
2 S 34 26 36
4 35 27 37
6 M 36 28 38
8 37 29 39
10 L 38 30 40
12 39.5 31.5 41.5
14 XL 41 33 43


Plus Sizes (fit to size 16W)

Size Bust Waist Hip
0X 38 30 40
14W 1X 42 34.5 45
16W 44 36.5 47
18W 2X 48 40.5 51
20W 50 42.5 53

How to Measure


BUST

Measure around the fullest part of your chest

WAIST

Measure around the smallest part of your torso

HIPS

Measure around the fullest part of your hip

LENGTH

Measure from the high point of the shoulder to the hem

How do your straight and plus sizes differ?

For sizes 00 - 14 we fit on a size 6 fit model and grade the pattern proportionally smaller and larger. However, a size 6 can only be scaled so much without becoming disproportionate. As demand for more sizes grew we knew we needed to create new patterns so as not to lose the fit integrity that we, and our customers, value.

For sizes 14W - 20W we fit on a size 16W fit model. In addition to hiring a dedicated fit model, we adjusted seams, proportions, and hemlines to offer the same superior fit and contemporary style of our existing collection, tailored to sizes 14W-20W.


Get in Touch

We're here. How can we help?
Contact us anytime via email or call us from 10am - 6pm EST.

info@ofmercer.com 212.979.2229