Soft Parts - Helmet liners Halo Costume and Prop Maker Community

As far as commercial helmet liners, what brands and models do you recommend for an ODST helmet and why?

I always have clowned the show for having costume design like comic con. This proves me wrong and makes me sad. : r/halo

Get your little one all ready to save the universe with this Halo Master Chief Classic Child Costume. Watch him stun all of his friends when he shows up looking like the main hero from all of the popular video games. This Halo Halloween costume comes with a green padded war like jumpsuit as well as a hard protective helmet to guard against the enemy's plasma gunfire. The muscles on this suit help to make him feel extra tough. Put it on for a party with loved ones.

Halo Master Chief Classic Child Costume

After nearly two years of work I've finally finished my halo cosplay armor! : r/halo

WZ's ODST Buck Build Log Halo Costume and Prop Maker Community

After almost 2 months of work, I have finally finished my Artaius helmet! Super excited to wear this with the armor :P : r/halo

Sea_Marshall: Re-armored Boba Fett / Boba Fresh fan build Boba Fett Costume and Prop Maker Community - The Dented Helmet

Disguise Men's Halo Master Chief Ultra Prestige

Halo Reach custom armor ODST Halo Costume and Prop Maker

What type of EVA Foam should I buy? RPF Costume and Prop Maker Community