In the new Star Wars movie we see Kylo Ren take off his helmet twice. Both times there is a loud "thud" and the camera focuses on the helmet's impact, as if to reinforce that Kylo Ren's helmet is heavy. Unreasonably heavy.
Is there any reason given for the weight of the helmet? As we see in the Star Wars universe, bulky helmets (looking at you Fett), don't do much. Even armour is pretty weak against laser blasters and lightsabers. Kylo Ren's other armour seems pretty lacklustre and light compared to the bulky helmet; barely stopping the three injuries he sustains in The Force Awakens. The weight of the helmet would seem to be a hindrance, at best, in combat.