However, the light alloy Men is not strong enough, so the titanium alloy Men that has comparatively lower specific gravity and is excel in all aspects such as strength, corrosion resistance, and aesthetic sense has been used for the protective gear for general adults who need higher impact resistance.
ただし軽合金製面金は強度的に十分とはいえないため、より高い耐衝撃性を必要とする一般成人向け防具には、比較的低比重ながら強度・耐蝕性・美観のすべてに優れるチタン合金製面金が使われるようになった。