IthacaMaven’s Substack

IthacaMaven’s Substack

Center Out

What does this mean?

Ithaca Maven's avatar
Ithaca Maven
Jul 24, 2026
∙ Paid

Saw a great example of CENTER OUT adjustments for jeans this week!

The fit issue is the need for more torso circumference:

The pants fit perfectly everywhere except at the center front.

Traditional pant fitting methods assess the figure and its variations. The ‘problem’ is the abdomen the recommendation is to ‘add the extra fabric where it is needed’, i.e. at the center. Cue the full tummy adjustment:

Intuitively this adjustment makes sense

and there’s nothing wrong or incorrect about this approach.

But it is not the only adjustment possible!

In body neutral pants fitting, we fit center out.

The center refers to the center line on the body.

The extra fabric needed to allow the crotch seam to map onto the body center comes from the side.

The maker gets to decide if the fabric is added equally to front and back and where it blends into the original side seam.

Here are just a few of the possible options:

How should one decide between all the possible pattern adjustments?

And here is @meriam.thesewist putting this into action on the ill-fitting RTW jeans:

With great results!

The Center Out Concept

In this example, adjusting center out has some obvious benefits; not having to mess with the fly front and flat fell crotch seam.

Are there additional benefits to fitting center out?

The concept for fitting pants center out is more than positioning the crotch seam at the center of the body.

It is key for guiding fit decisions, hence the term TopDownCenterOut (with apologies to British English spellers).

User's avatar

Continue reading this post for free, courtesy of Ithaca Maven.

Or purchase a paid subscription.
© 2026 Ithaca Maven · Privacy ∙ Terms ∙ Collection notice
Start your SubstackGet the app
Substack is the home for great culture