It is generally recommended to wash newly bought underwear before wearing them for a few reasons:
Hygiene: During the manufacturing, packaging, and shipping process, underwear can come into contact with various substances, including chemicals, dust, and germs. Washing them before wearing helps remove any potential contaminants and ensures better hygiene.
Fabric Treatment: Manufacturers often apply finishes or treatments to underwear fabrics to enhance their appearance, texture, or wrinkle resistance. These finishes may contain chemicals or dyes that could potentially irritate sensitive skin. Washing the underwear helps remove these substances and reduces the risk of skin irritation.
Sizing and Fit: Washing new underwear can also help in achieving the proper fit. Fabrics, especially cotton, can shrink slightly during the first wash. If you wear the underwear before washing, it may shrink afterward, affecting the fit and comfort.
Odor: Some new underwear may have a slight odor from the packaging or storage. Washing them eliminates any unpleasant smells, ensuring a fresh and clean start.
By washing newly bought underwear before wearing, you can ensure optimal cleanliness, comfort, and minimize any potential skin reactions.