How to Check If a Suit Is Wool Without a Burn Test

Check the suit’s fiber label first. Look for the composition of the outer fabric, sometimes labeled “shell,” and read the lining as a separate item. A wool shell can have a lining made from a different fiber.

If you’re buying secondhand and the tag is missing, ask the seller for a picture of any inner labels, the original listing or the brand’s style number. A fabric description from the maker is more useful than guessing by touch.

What the label can tell you

• “100% wool” on the shell line describes the outer fabric.
• A line such as “55% wool, 45% polyester” identifies a blend and gives its stated percentages.
• Terms such as “wool feel” describe appearance or texture. Look for the actual composition.

What to do with an unmarked suit

Ask a tailor or specialist cleaner what they can determine from the cloth and construction. If fiber content matters for an expensive purchase and documentation is missing, factor that uncertainty into the price.

A burn test can damage the garment, and results are difficult to interpret when a cloth contains blends or finishes. Keep the suit intact and use the care instructions or a cleaner’s advice when deciding how to clean it.