Not sure if Forcefield armour is available in the antipodes but it is excellent. It has applications across a number of sports, is lightweight but very high in impact protection. I have been using it for a number of years and it has protected me from impacts that would have caused serious injuries and fractures without.
It also has a feature where it absorbs body heat and moulds to your shape so you simply forget that you have it on. Have a shufti and see if it would suit you. I would recommend either the limb tubes or the "long john" type base layer with armour built in.
https://www.forcefieldbodyarmour.com/