foam its only foam
Go to an upholstery shop ask for anti hypoallergenic foam trim, you will have to buy a mtr length [prepare for the shock] bout 80p a metre, take it home and stick it in your mask with a safe glue, sell the off cuts to your mates and you will undercut the paintball shops at what £5 for new foam and that’s maybe cos your platform may no longer supported, thus they want you to buy a new mask