Acid-wash jeans are a style of denim that has a faded, distressed appearance created through a special washing process. This technique involves treating the fabric with a mixture of bleach and other chemicals, which lightens certain areas while leaving others darker. The result is a unique, worn-in look that became popular in the 1980s and 1990s. These jeans are often associated with grunge and punk fashion, reflecting a rebellious aesthetic. Acid-wash jeans can be found in various styles, including skinny, straight-leg, and baggy, making them versatile for different outfits and occasions.