Both look really cheap, and are badly designed, especially when compared to lotr.
For example look at the angles on the chest.
Boromir’s armour is angled to deflect incoming strikes. So if someone tries to stab him in the chest, the strike will slide off. It makes sense, and is the basis of good, functional armour throughout history.
Now look at these other two. You can aim for the heart, miss and hit the ribs, and the tip will still slide and go under the pec. It directs all strikes towards your heart instead of away from it.
Most of the costumes in the show are very, very good tbf. It’s something they generally did well. Same goes for the props.
I also wouldn’t really compare heavy “in battle” armour against some more casual armour that he wore off-duty.
E: Here is Elendil’s battle armour, which is probably a more apt comparison to Boromir’s heavy armour.
Both look really cheap, and are badly designed, especially when compared to lotr.
For example look at the angles on the chest.
Boromir’s armour is angled to deflect incoming strikes. So if someone tries to stab him in the chest, the strike will slide off. It makes sense, and is the basis of good, functional armour throughout history.
Now look at these other two. You can aim for the heart, miss and hit the ribs, and the tip will still slide and go under the pec. It directs all strikes towards your heart instead of away from it.