Sizing
Our Fit
At a space, in between., every garment begins with the body in mind. We fit our patterns on Alvanon’s custom American US W20 women’s plus-size form, then apply our in-house biomechanics expertise to grade and refine each size—ensuring the same comfort, drape, and elegance from 1X through 6X.
Our goal: that moment when you put on your garment and feel instant joy, freedom, and confidence.
How to Measure
Chest
Measure around the fullest part of your chest, keeping the tape level.
Waist
Measure around the body between the top of the pelvis and the bottom of the ribcage.
Hip
Measure around the fullest part of your hips, keeping the tape parallel to the floor.
FIND YOUR SIZE
| One the label | Chest | Waist | Hip |
| 1X / US 16-18 | 45" / 114cm | 38" / 97cm | 50" / 127cm |
| 2X / US 20-22 | 49" / 125cm | 42" / 107cm | 54" / 138cm |
| 3X / US 24-26 | 53" / 135cm | 46" / 117cm | 58" / 148cm |
| 4X / US 28-30 | 57" / 145cm | 50" / 127cm | 62" / 158cm |
| 5X / US 32-34 | 61" / 155cm | 54" / 138cm | 66" / 168cm |
| 6X / US 36-38 | 65" / 165cm | 58" / 148cm | 70" / 178cm |
Measurement Guide
Questions About Sizing?
Email us "questions about sizing,” we're here to help you find your best fit!
Fit Philosophy
Consistent Excellence
Every size is fit-tested on the Alvanon US W20 base form, then graded with our biomechanics-informed system for a harmonious fit across the range.
Ease Where You Need It
Many styles are designed with built-in ease for drape, movement, and layering.
Proportion Perfection
Strategic seam placement, fabric weight, and drape are adjusted per size to maintain silhouette integrity.
Omotenashi Service
Our Omotenashi Service for customers ordering 5X and 6X, we offer an exceptional, personal fit consultation before we move to cut and sew.
After purchase, we’ll arrange a private appointment — online (worldwide JST hours), or in person (Tokyo Atelier, only) — to confirm your measurements and preferences, ensuring your garment is crafted to your unique proportions.
Sizing Questions?