I have whats called the defNder. Works better then the hans. Has 2 straps for side and front support. But what sits on my shoulders is seatbelt material. NOT Carbon fiber. It doesnt break ur collarbone or ive heard reports of people having other restraints popping they're shoulders out of socket. But i was glad i had it!

Go to www.djsafety.com and scroll down to look at it. Here is a site for some info http://djsafety.com/sfi_381.html