The housing can be attached in the same way as the GoPro itself. So these are all the official variants for mounting:
https://gopro.com/en...Hand + Wrist Strap seems to be about the most suitable. But there are many possible do-it-yourself solutions with Curved + Flat Adhesive Mounts.
Hama also has good solutions for GoPro mounts (also directly on the goggles):
https://ch.hama.com/assistant...