A "28-inch waist" refers to the measurement around the narrowest part of the torso, typically just above the belly button. This size is often used in clothing sizing, particularly for pants and skirts. It indicates a smaller waistline, which can be associated with various body types and styles. In fashion, a 28-inch waist is commonly found in women's sizes ranging from 4 to 6 and in men's sizes around 28 to 30. This measurement can vary based on brand and style, so it's essential to check sizing charts when shopping for clothing.