Mojang cracked down on custom geometry skins in the main menu years ago to stop people from loading invisible hitboxes and broken models onto public servers. That change killed off a lot of the wilder community cosmetics, but creators found a way around it by shifting from player skins to full in-world add-ons. That is exactly what this pack does. The community calls these models 5D skins because they push way past the standard Steve frame, stacking complex custom 3D geometry, floating parts, and oversized silhouettes inspired by pop culture, anime, and other games directly onto your character.