Check out the Brand New FIE Mask from Allstar.

The 1600N FIE Mask - AMI-VARIO which comes with a deatachable lame bib allows the fencer to use the mask for Foil or Epee. When the lame bib needs replacing its easy to fit a new bib in seconds. No fear of your mask ever being rejected at weapon control with a new bib in your fencing bag.

The AMI-V costs £149.00 and replacement bibs are £25.00.