What gives some boxers more power speed and toughness than others?

[Sandro17]

Concerning power is it in your body structure, style or the fact that you weight train more than others?

I hear that Manny Pacquiao has more power than alot of other peoplr in the sport; but is it his muscles his form or the fact that he works his muscles 200% more than other boxers?

Erik Morales and Baldomir have great chinds and can take punches really really well is it because of their body structure or mental toughness?

What about hand speed? Is it muscle structure that makes fighters like Sugar Ray Leonard that makes his hands faster than Miguel Cottos?

[SpeedKillz]

its the things that u listed as well as genetics.

[demirturk]

its whats you are born with... no need to discuss this . there are so many punchers that look absolutely ripped , and others look soft ....