Thanks for the replies. I sent a mail to rs for a replacement part. I have a troop on saturday, so ideally I want to repair it by then. What I'm trying to do right now is put a piece of pvc underneath. I have boiled it, put it underneath the chest armor/broken off piece with clamps and I'm currently letting it cool, so it gets the right shape. Then I want to glue it with hard plastic glue.