PASGT Kevlar Helmet Upgrades? - AR15.COM
Measure your head, and NEVER buy a helmet too small. You can possibly recover from getting a helmet one size too big, but never from buying too small. ... I got a PASGT very cheap - I think I spent $10. I then bought a new in the bag Skydex pad and chin strap kit off eBay for $30 and put it in there. It made a world of difference.