A suit is the most versatile piece of clothing you can have. You can wear it to just about any event without feeling out of place, given that it fits with the dress code. A well-fitted suit gives out a sense of elegance, professionalism, and style that can’t be matched by any other attire. To help you achieve this effect, you’re going to need to understand the size and fit of a suit so that you can choose the right one.

When you wear a nice suit jacket, your chest should catch the attention of the onlooker. The jacket emphasizes the overall form and helps to guide the eye flow from top to bottom smoothly. You can check for the jacket size on the label in the inside of the collar. You will see a number next to the size that indicates the chest size. When buying a suit, make sure you have your chest measured first to avoid getting a suit with a saggy chest.

The length is usually represented in the S, R, L, XS, and XL. This is not to be confused with the chest size, as it has nothing to do with one another. It’s not uncommon to see someone with a smaller stature wearing a 40M jacket, while a taller person could wear a 38L. The length corresponds with your height, not your width.

Pant size is a slippery slope, as different styles are fitted on around different areas of your waist, and the inseam (or the length of the pants). Modern suit pants are worn lower down the hip, meaning that the waist has to be a little bit larger than old-fashioned pants that are designed to be fitted higher around your belly button. When you go into a store, make sure that you know what the numbers on the label indicate. You don’t want to buy a pair of pants that are too short but also too loose around the waist.


Fabrics like denim, chino, and polyester are typically more elastic than suit pants, meaning that they will stretch to fit around your body more. This is why your size choices are more lenient when it comes to fabrics like these, as you can go a few sizes smaller for these pants and you’ll still be able to wear them comfortably. Suit pants don’t stretch nearly as much as these other styles of pants, so you’re going to need to go for your true size or a little bit over. We suggest the latter, as you’ll have to take the belt into account as well.


Because there’s a slight difference between the US and European sizing standards, you might find that some suits don’t fit quite the same even with the same size and fabric. Although this doesn’t happen very often, and the effect might not be dramatic enough to make you feel significantly different, you should still keep this in mind. It’s usually not that big of a deal when you’re buying your suit at the store, but it could be when you’re shopping online. If you’re worried that this might be a problem, try to look for a sizing recommendation or an actual size chart for the products so that you know exactly what the measurements are.

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