system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How does a bomb suit protect a bomb technician during an explosion?

Edit: Thank you all for the responses. They very very clear!
gpt
There are three big dangers that typically come from a bomb explosion: heat, shrapnel, and shockwave.  

A bomb suit is designed, as much as possible, to protect from those three things.  It's got thick layers of padding and kevlar to keep shrapnel from the bomb from piercing and harming the wearer.  It's thermally insulated so that heat can't get inside the suit and burn the wearer.  And it's got layers of material with a high acoustic impedance and soft foam layers to keep the shockwave from exerting too much pressure on the wearer.

The shockwave is the biggest danger to the wearer if they're close to the bomb, and the hardest to protect against.  A light suit can protect very effectively from shrapnel and heat, but might not be able to withstand a close-range shockwave that could still cause a lot of internal damage.  Heavier suits are more able to withstand that pressure, but it's the hardest factor to protect against.