The shirt arrives and something is off. Same size, same colour, same shirt — but it does not sit the way it sat in the photograph, and it is hard to say exactly why.

Usually nothing has gone wrong. A product photograph is a controlled image of one garment on one body, and almost every variable in it is different from yours.

Fit conversations always go to the chest and the shoulders. But the measurement people get wrong most often is body length, and it is the one that decides whether a tee looks like it belongs to you.

There is a fairly narrow band where a hem works, and it is defined by landmarks on your body rather than by a number on a size chart.

The look you want is relaxed. So you buy the same shirt one size up — and somehow it just reads too big. Sleeves past the elbow, shoulders sagging, the whole thing hanging off you rather than on you.

Sizing up and buying oversized produce very different garments. The difference is a pattern decision, not a letter on a label.

You have probably seen it on a product page and scrolled straight past it. 180 GSM. 220 GSM. Three letters and a number that tell you more about how a T-shirt will age than the price tag does.

GSM stands for grams per square metre — the weight of one square metre of the fabric. That is the whole definition. But that single number quietly decides whether your shirt drapes or clings, whether it survives a summer or a decade, and whether you can see your skin through it in daylight.

When it comes to finding the perfect T-shirt, fit is everything. At Tarsah, we take pride in offering high-quality cotton tees that not only look good but feel great. One of the most important steps in picking the right T-shirt is understanding the fit type. Whether you’re shopping for everyday basics or curating a capsule wardrobe, this guide will help you find the style that suits you best.