I've only used it for a month, so there's no noticeable dirt. I wore it over Heattech, so it didn't directly touch my skin. There are no pills on the blue parts or the Velcro. There are some pills/fuzzing on the white parts only (please see the photos). There are creases on the thin parts, but it didn't affect the support. (It got wrinkled within a week of use. I didn't use it excessively or wear it for a long time.) Please check the photos before purchasing. I will fold it for shipping. Feel free to ask any questions!