ELI5 Carbon Fiber - what makes it so strong?

Why is carbon fiber often used as a stick to hit objects in sporting goods? What's the difference between fiberglass, kevlar, and carbon fiber? What makes CFRP so strong?    ... We explain like i'm five!   Thank you to the r/explainlikeimfive community and in particular the following users whose questions and comments formed the basis of this discussion: seneca_ivbc, robellicose, one_eyed_bear, archangel087, myboo29, barael, vchipeur & ponk_bonk To the ELI5 community that has supported us so far, thanks for all your feedback and comments. Send us an e-mail: [email protected]