Why do runners wear tight clothes?

Related questions

1. What should a beginner wear to yoga?
2. How tight should yoga pants be?
3. Why should you not wash your jeans?
4. Is it OK to wear leggings as pants?
5. Are yoga pants going out of style?
6. What should a beginner wear for yoga?
7. What's the difference between spandex and yoga pants?
8. What is the difference between yoga pants and leggings?
9. Why do runners wear leggings?
10. Can u wear the same pants 2 days in a row?

Tags

1. #tight
2. #muscles
3. #chafing
4. #thing
5. #themselves
6. #clothes
7. #painful
8. #rubbing
9. #preventing
10. #together
11. #called
12. #recovery
13. #place
14. #after
15. #thighs