Hi, glad to read, your father have surrender to the dark side and will be join us as an Imperial Stormtrooper too.
That's so cool, father and son Trooping togheyer. Congratulations.
About the hand guards, the CRL points:
Hand Plates
Roughly pentagonal in shape, the hand plates are mounted securely over the back of the glove. As an alternative to plastic, these may be made out of latex or latex-like material.
OPTIONAL Level two certification (if applicable):
OPTIONAL Level three certification (if applicable):
Hand guards shall be latex or latex-like, solid white or painted white, and affixed to rubber gloves with no visible strapping or stitching.
The hand guards for level 3 must latex or latex like material
Cheers.