About Shatnez:

 

Most Shatnez that we find today is located in the collar area of men’s suits especially in the more expensive suits. Most suits today are made of wool or wool blends. To retain the shape of the collar area, a canvas stiffener is generally sewn into the collar and linen is the fabric considered by the clothing industry as being the best material for this purpose.

 

The more expensive the suit, the greater the likelihood that linen is used. With this information, it is obvious that all men’s jackets arid coats should be tested. If  linen is found in a collar canvas, it is easy to remove and replace it with a non- linen canvas