Warning: Once you've put on a pocket square, you'll never be able to wear a suit without it anymore. The pocket square is essentially just a piece of cloth. For the uninformed, they look like colorful handkerchiefs. For the stylish folk, they are what's needed to complete the look.

Here are some 23 examples of pocket squares we love. Check them out after the jump:

1. Look how handsome a pocket square can make a suit:


2. You'll need some staples. Try this one:


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3. This adds a touch of playfulness to your serious suit.


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4. Match this with dark colored ties.


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5. Go for bright colors to bring a suit to attention.


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6. A staple you need to have as it could match a lot of things


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7. Even pattern-types will go with suits.


8. It adds personality.


9. It adds depth.


10. It can be colors you don't dare to wear on a shirt.


11. It shows off confidence.


12. It doesn't make you look so rigid.


13. Find other ways to fold it:


14. As a rule of thumb - match it to your tie.


15. It can be used to draw attention.


16. There are many ways to fold it.


17. A tux should never be worn without a pocket square.


18. A suit would look weird without one.


19. It says "Serious-Business".


20. It adds playfulness.


21. It matches the suit and tie.


22. A pocket square can provide contrast.


23. It should be worn even if you're not wearing a tie.


Bonus: Not sure how to fold one? Check out the video below: