Like the armor kit, there are different makes and makers for the helmet. As with all armored costumes, this is the most important piece of your suit and you want it to have quality and durability. I bought a KS helmet, made of ABS, fully built, and for a price... but it was worth it.
I replaced the snout/aerator detail piece with a more accurate one, found one eBay.
The KS snout detail.
On the left side of the helmet there is the screen-accurate scout symbol. The bolt covers on each side are not screen-accurate, though. They should be completely flat and not have that black ring.
The insides of the built KS helmet come with foam padding. Since it's rather large compared to other versions, I added a few more pieces (the blue ones) with double-sided tape.
I plan on adding a voice changer/amp system to my suit and having the extra room in there is great. Stay tuned for updates on that.
Update: the TrikToys microphone and amp systems integrated inside the bucket. It required 2 AA bateries, no static burst function.
One wire comes out of it to connect to the speaker placed in one of my pouches.
My newest mod is the Hyperdyne Labs system: the amp module (voice effects, random types of static burst, push-to-talk button), better quality microphone, only one battery needed.
