👔 Choosing the right size is the first step to wearing a suit well!

We all know that ordering a suit online can sometimes be a real challenge. With sizing varying from one brand to another and measurements that can be tricky to take correctly, it's easy to end up with a jacket that's too tight or trousers that are too long.

To help you avoid those disappointments, we've put together this practical guide. No complicated tailoring terms or confusing instructions—just simple tips to help you take your measurements accurately and make sure your next suit fits like it was made for you.

Ready to grab your measuring tape? Let's get started! ✨

 

 

1. Shoulder Width

The jacket should be fully buttoned. Lay it flat, then measure across the back from one shoulder seam to the other.

 

2. Jacket Length (Total Length without collar)

Measure the jacket from the base of the collar down to the bottom hem, along the back.

 

4. Armpit Width (Underarm to Underarm)

Lay the jacket flat and fully buttoned, then measure straight across from one underarm seam to the other.

On most vintage jackets, the chest width is intentionally generous, which is why having the jacket tailored for a more fitted silhouette is often recommended.

5. Waist Width

Lay the jacket flat and fully buttoned. Measure straight across the waist at the narrowest part of the jacket, from one side seam to the other.

The waist width determines how fitted the jacket will look when worn.

• A wider waist creates a more relaxed, classic silhouette.
• A narrower waist gives the jacket a more tailored, fitted appearance.
• On many vintage jackets, the waist is intentionally cut fuller and can easily be taken in by a tailor for a more modern fit.

Final Thoughts

A well-fitted jacket isn't about the size on the label, it's about choosing measurements that match your body and your style.

By comparing the measurements in this guide with a jacket you already own and love, you'll be able to select the right size with confidence and enjoy the timeless elegance of vintage tailoring.

Looking for the perfect vintage jacket? Browse our collection of vintage suit jackets