By MANLY · First published: · English edition: · Fit and sizing guide
You like an oversized tee, but you are unsure whether to choose your usual size or go smaller. Lay a T-shirt with a fit you like on a flat surface and measure it. Compare those figures with the chart for the design you are considering. You can then see what will change before ordering.
This guide focuses on choosing a size. For the difference between the cuts themselves, see oversized versus sizing up, with photographs and measurements of two actual MANLY garments.
How do you decide which fit you want?
Identify what you like about your current tee and what you would change. More room through the body? A longer sleeve? The same width with a shorter body? These questions turn a general preference for oversized clothing into dimensions you can compare.
Try your reference tee with the trousers or shorts you usually wear. A length you like with one pair may look different with another. You do not need to follow one universal hem-length rule or hide your body shape to get the outfit you want.
Which measurements should you compare?
Chest width
Lay the tee flat without stretching it and measure from underarm to underarm. This is the garment’s flat width, not your chest circumference. If a chart gives body or garment circumference, check which it means before comparing.
Overall length
Check the starting point in the product’s measuring guide. Some charts measure from the high shoulder beside the collar; others use another point. Measure your own tee the same way, then check where that length finishes when you wear it.
Shoulders
Full shoulder width runs between the shoulder seams according to the chart’s method. It differs from a one-sided measurement from the collar edge to the shoulder seam. Keep the two separate.
In MANLY’s comparison, the confirmed one-sided measurements were 15 cm for the regular tee and 24 cm for the oversized tee, both Small. Those figures belong to the two garments measured. They are not a sizing rule for everyone. The comparison includes the photographs and other approximate measurements.
Sleeve length
Check whether the measurement starts at the shoulder seam or elsewhere. A dropped shoulder changes where the sleeve begins, so sleeve length alone cannot tell you exactly where the cuff will sit on your arm.
| Measurement | Compare | Watch for |
|---|---|---|
| Chest | Flat width with flat width | Do not substitute body circumference |
| Length | The same start and end points | Charts may use different methods |
| Shoulder | Full width with full width, or one side with one side | The 15 and 24 cm figures measure one side |
| Sleeve | The same starting point | Shoulder-seam position affects where the cuff sits |
What if you are between sizes?
Compare both sizes with your reference tee. Look at each dimension and decide which changes you would accept. If the smaller size removes room where you need it, a shorter body length alone may not make it a good choice.
If the larger size gives you the width you want but too much length, look for another design with different proportions. Changing the cut is another way to reach the fit you have in mind.
Should you start with your usual size?
Use it as a starting point for comparison. Read the size chart and fit note for the particular garment. If a listing recommends going down a size, make sure that advice applies to that model. It does not apply automatically to every oversized product.
Can you rely on the model’s height and weight?
Model details can provide another reference, but they do not replace garment measurements. Two people with the same height and weight may have different proportions or prefer different fits. Compare the dimensions first, then use the photograph to picture the outfit.
How do you assess the fit when trying it on?
- Wear it with your usual trousers or shorts and check the front and side views.
- Raise your arms and sit down. Notice pulling at the chest, underarms or collar.
- Check the body and sleeve lengths against the look you wanted.
- Try any sleeve roll or tuck you plan to wear. If you keep adjusting the tee to feel comfortable, reconsider the size or cut.
A roomy fit is a valid choice, as is a closer one. Judge it by your comfort and the shape you want to wear.
What should you ask if the chart is incomplete?
Ask for the intended size’s flat chest width, overall length and its starting point, shoulder measurement and sleeve length. Give the measurements of your reference tee and explain where you want more or less room. That is more useful than your usual size letter on its own.
Treat measurements read from photographs, or labelled approximate, as estimates. Do not turn them into confirmed figures or infer the measurements of other sizes.
What should you check before ordering?
Confirm the size’s availability, the exchange policy and the dimensions that matter to you. If you are choosing for summer, see our hot-weather T-shirt guide too. Fit is part of the decision; it does not establish fabric performance.