Does a garment that is 100% wool need to be checked for Shatnez?
Garments are required according to federal law to have a label listing the content of the fabric, but only the main shell fabric of the garment is included in the requirement. The content of linings, reinforcements, and internal components of the garment are not listed on the label.
The problem is further compounded by the government’s laxness in enforcing these laws. Many companies, knowing that they have nothing to fear from an enforcement agency, do not bother to accurately identify the fibers used in their products, and may even deliberately misrepresent their content in order to boost sales.