Mandalorian armor has veried ever since the crusader armour was designed so long ago but three facts have always distinguished us from other soldiers of the galaxy :
1:Mandalorian armor is always made of mandalorian iron which can block a lightsaber and makes blaster bolts look like children's toys.
2:The helmet always had the T shaped visor and a sophisticated HUD
3:Colors have reflected rank,accomplishments,taste,tactics,symbols and other things our armor is centered around the symbols idea:
Grey=mourning a lost loved one
Red=honoring a father
Black=justice
Gold=vengeance
green=duty
Blue=reliability