Why do sailboats have black sails?

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Tags

1. #matters
2. #rotting
3. #other
4. #vegetation
5. #strong
6. #resistant
7. #fibers
8. #super
9. #black
10. #before
11. #racing
12. #caused
13. #dress
14. #couture
15. #carbon
16. #haute
17. #sails
18. #flexing
19. #sailboat
20. #color