Alternatively protection

Does anyone use alternative protection under leathers/ textiles, like Alpinestars Boinic for example?
I've been looking for things that I can wear under a larger leather jacket and jeans etc.

 

Forcefield back protector L2k, fits well under a one piece or jacket

 

Forcefield pro x impact shorts under jeans if not in leathers.

 

Alpinestars Track Vest with integral back, chest, collar and hip protection. Been down 3 times on track and it's been fine.
Should really think about an air vest or air suit for ultimate protection though.