When shopping for a new suit, you may come across some shirts, jackets and other garments that display an "S" number on the label. Normally, this letter is only displayed on wool suits, indicating the fineness of the wool fabric used in the suit's construction. The larger the diameter the fabric, the greater the S number. But this is really just the tip of the iceberg when it comes to the S number and how it is used. To learn more about it, keep reading.
The Basics of the S Number
The S Number, when used in conjunction with a wool suit, describes the fineness of the wool fabric as measured in micrometres. An S 120 suit, for instance, is made of wool that has a diameter of 120 micrometres, whereas a suit with an S 60 number is made of wool with a diameter of 60 micrometres. Keep in mind, however, that even some non-wool suits may possess the S number. It's not uncommon for suits made of various wool blends to possess an S number, helping consumers make better decisions regarding which suit is right for them.
Purpose of the S Number
You might be wondering what purpose (if any) the S number serves. After all, it's not like you need to know the fineness of a suit's fabric when purchasing a suit. The S number has become increasingly popular in recent years, largely for its ability to determine the quality and performance of wool and wool blend products. Companies that produce cheap suits will often use thicker wool fabrics, simply because it costs less. But suits made with exceptionally thick wool may feel tough, rugged, and uncomfortable to wear. This is where the S number comes into play: suits that are made with finer, thinner wool fabrics are softer and more comfortable to wear, boasting a lower S number.
Which S Number Should I Choose?
So, should you choose a suit with high S number of a low S number? Suits with a high S number are generally preferred for the fall and winter months, as they offer greater warmth, whereas suits with a low S number are preferred for the spring and summer because they are cooler. However, the finer the fabric, the greater the risk of damage. This is why it's important that you have low S number suits professionally dry cleaned instead of tossing them in your washer and dryer.
