The Rational Dress Society Official Guide to Anthropometric JUMPSUIT Sizing

Sizing for the future!

The Rational Dress Society sizing system is from the future. The following information is a guide to determining which JUMPSUIT is right for you.

Current models of industrial manufacturing limit the range of available sizes, thereby reducing our bodies to interchangeable units; a size small for example, or an extra large. Anyone who has ever shopped for a pair of jeans, however, can identify with the alienating feeling of inhabiting an unruly or non-compliant body. In order to achieve the visual uniformity fundamental to JUMPSUIT an entirely new approach was developed.

JUMPSUIT is an ungendered garment. Unlike unisex garments of the past, which were made in larger sizes and were often ill-fitting, JUMPSUIT embraces the differences between individuals while maintaining the visual oneness of the collective!

Using anthropometric data from sources including NASA, we created a new, radically inclusive sizing system based on three base body types: V which skews larger at the chest, I which has an even proportion between the hips and chest, and A which skews broader at the hip. To each of these body types bust darts may be added to accommodate breasts.

Download the official Rational Dress Society Guide to Measuring and Sizing here or follow the prompts below.

jumpsuit body types

JUMPSUIT comes in three base body types, “V”, “I” and “A.” To each of these body types bust darts can be added to accommodate breasts. To determine which of the three JUMPSUIT body types best works for you, you will need to calculate the difference between your chest and waist, and your waist and seat measurements by using the calculator or following along with our Official Guide to Anthropometric JUMPSUIT sizing PDF here.

To best utilize the tables, first record your measurements, select the Fitted or Unfitted category, and find the measurements that are closest to your own in the tables below to determine your size.

jumpsuit sizing tables

We are pleased to announce that the majority of our patterns have been digitized and are available for download! Please use the sizing calculator to determine your JUMPSUIT size! If you already know your size, you can download your pattern from the tables below. Simply click on the size name to download your pattern.

If your size doesn’t currently have a link, your pattern is still being processed. To be notified when all the sizes are complete, please sign up for our mailing list.
In addition to our patterns, we’ve made a series of instructional videos to walk you through all the steps of sewing your very own utopian monogarment here. And if you sew your own JUMPSUIT, please send us a picture! We’d love to see your creations. JUMPSUIT is an open-source monogarment, we are always striving to improve our pattern and sizing system. If you make any adjustments to the pattern, for lifestyle needs, ease of use, accessibility or fit, please let us know. We’d love to incorporate your changes into the next version of JUMPSUIT! Happy sewing, comrade.