This t-shirt size guide takes the guesswork out of ordering online. Three simple steps, a few honest tips, and you will know exactly which size to choose.
The perfect tee should look intentional, not accidental. Too tight and it pulls; too loose and it hides you. Let us get it right the first time.
In this guide
Step 1: measure the t-shirt you already love
The easiest reference is a tee that already fits you perfectly. Lay it flat on a table and smooth it out.
- Measure straight across the chest, from armpit to armpit
- Measure the length, from the highest point of the shoulder to the hem
- Write both numbers down and compare them with the product you want
Step 2: know how each fit is designed
Not every tee is cut the same way. Here is how our fits are designed to fall, so you can choose with confidence.
Regular fit
Our classic logo tees, like the Unisex Classic SEIF Logo T-Shirt, fit true to size. Take your usual size.
Relaxed heavyweight fit
Heavyweight tees such as the Vintage Galaxy Graphic T-Shirt have a slightly roomier cut. Your usual size gives a relaxed look; size up for a looser streetwear feel.
Oversized fit
Pieces in our Oversized range have dropped shoulders and a wide body by design. Take your usual size for the intended look.
Fitted tank tops
Our micro-rib tanks hug the body. Prefer a softer, looser feel? Size up once.
Step 3: use our t-shirt size guide rules of thumb
- Between two sizes? Choose the larger one for comfort, the smaller one for a sharper fit
- Cotton can relax slightly with wear, so a snug tee often feels perfect after a few days
- Always check the size and fit notes on each product page
The right size changes everything. The same tee can look ordinary or unforgettable.
Still not sure?
We are happy to help you choose. Send us a message with your usual size and the piece you love, and we will advise you personally. And if it is not right, you can return it within 14 days.
Want to understand where the humble tee came from? This brief history of the t-shirt is a fun read. Then put this t-shirt size guide to work.
