The term 'alternative to briefs' can be answered with two words: 'BOXERS' (6 letters) and 'boxershorts' (11 letters). BOXERS are a type of loose-fitting underwear that are typically made of cotton or a cotton blend. They are usually worn by men and have an elastic waistband with an open fly. Boxershorts are a type of shorts that are designed to look like BOXERS, but they are usually made of a more lightweight material such as nylon or polyester. They are often worn by both men and women.