I think the Extra Padding passive does nothing : r/Helldivers

Helldivers 2: Extra Padding Explained

Seriously guys… : r/Helldivers

Helldivers 2 best loadouts: Weapons, armour, and Stratagems

Helldivers 2: News, Server Fixes, Guides, Crossplay & More

Helldivers 2: Extra Padding passive explained - Dot Esports

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Extra padding should be more effective for heavier armours and less effective for lighter armours : r/Helldivers

What Is Extra Padding In Helldivers 2?