What is the difference between “adjustable” and “non-adjustable” trousers?
Since a belt is not worn with a tuxedo, you will find that most tuxedos trousers are manufactured with an adjustable waist. The adjustable waist trouser allows you to loosen or tighten the waist 1-3 inches. The benefit of the adjustable waist is not having to go to a tailor to take in or let out the waist.