The movie sucks in so many different ways bitching about an almost 100-year-old comic character's powers is the most boring and annoying thing you could do.
Namor’s Tiny Wings Shouldn’t Be Able to Make Him Fly
Namor’s wings are ridiculously small compared to his body, yet somehow they’re powerful enough to carry him through the air at high speed.
They’re part of his mutant physiology, not technology, but the MCU never really explains how they generate enough lift to fly someone his size.
And the funniest part? He can maneuver through the air like those tiny ankle wings are completely normal. Marvel really looked at Namor’s feet and said, “Yep, that should be enough to fly.”