The undersuit can actually protect the user by altering its density. That's why John doesn't die during orbital reentry (hitting the ground). It should work for pressure as well.
@Mima
Edited my post.
EDIT:
@Mima
What the F*CK is that fishing line made out of!?
@Mima
Edited my post.
EDIT:
@Mima
What the F*CK is that fishing line made out of!?
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