Squadt Helmet Question

I have a (GID) NKD Jack, and his helmet fits really loose and doesn't stay in place right.
Do you guys have any tips on how to make the helmet have a snug fit? (I was thinking maybe leaving it in ice water for 20-30 mins, but I don't know if the helmet would get damaged).
Any advice would be really helpful.
Thanks!

pretty thick plastic i dont know if you can shrink it
id try to fill the gap with something on his head, like cut a thick sock or piece of cloth to size and then put the the mask over it

maybe even a strip of thick cardboard running from his eyes to the back of the head might take up space too

bubble wrap?....

I'm not sure what you could do about that other then those suggestions, but i think the GID nkd jack is supposed to fit more loose on the head, at least mine is aswell I don't mind it

Do you play with your squadts? I mean...it's just sitting there on the shelf. Not like it's goin anywhere.

Thanks itsa_mia! I filled the gap with some fabric and it fits really good.

And I actually do play with my squadts sometimes... there just so fuckin cool looking I can't help it.

cool

I'm afraid of taking the helmet off sometimes, because I keep thinking it will scratch the painted eyes. I think I might go to Joann's and get some thin fabric to put over the head when the helmet is on.