American composite helmet history and comparison

This video will cover all the variations of the American composite helmet since its genesis with Pasgt through the ech helmet so around 30 to 40 years depending on how you look at it. This video will explain the differences between models go in as much depth as manufacturing processes to hardware and suspensions types. The helmets shown in the video are the M1 liner, Pasgt size large, ach size large, mk1 lwh size large, mk2 lwh size large, and the ech size large. The video will also cover some history of these helmets and the split in designs between branches of the us military to meet each branches specific requirements. Hopefully you liked this video and subscribed if you like this sort of stuff. Please leave a comment with any questions or suggestions for future videos and I will do my best to answer them. As always thanks for watching.

Thank you,

Devin K.