How to Choose the Right T-Shirt Size (Regular & Oversized)

A simple guide to picking the right T-shirt or hoodie size: how to measure, the difference between regular and oversized, and GOATS size charts in centimeters.

The question we get most on WhatsApp: “Which size should I get?” The truth is, a size isn't a fixed number — every cut has its own measurements. The good news: you can find your size in two minutes without trying anything on.

The easiest way: measure a T-shirt you already love

Grab a T-shirt that fits you comfortably and lay it flat on a level surface.
Width: measure from armpit to armpit (side to side).
Length: measure from the highest point of the shoulder down to the bottom of the T-shirt.
Compare both numbers with the size chart and pick the closest size.

Cotton shrinks 1–2 cm after the first wash, so if you're between two sizes, go for the bigger one.

Regular or oversized?

Regular has a classic cut that sits on the body without being tight. Oversized is wider with a slightly dropped shoulder — the streetwear style that's everywhere right now. If you want an extra-roomy oversized look, go one size up from your usual.

GOATS size charts (cm)

Regular T-shirt	S	M	L	XL	XXL	3XL
Width	52	54	56	58	60	62
Length	68	70	72	74	75	78

Oversized T-shirt	S	M	L	XL	XXL
Width	54	56	58	60	62
Length	68	70	72	74	75

Oversized hoodie	M	L	XL	XXL
Width	62	64	66	68
Length	71	73	75	77

The current sizes on the website are the reference — you'll find the chart for each cut inside the design studio.

Ordering for a team or a class?

Have everyone measure a T-shirt they own the same way, or send them the group order link so each person picks their own size — the size chart is right there.