Liquid Image Goggle Action Camcorders

Anyone know if you can wear glasses under these?

These would be perfect for skydiving!

What is the IP rating on these?

Bought these before winter started. I love them,even without the camera they are great googles. I’ve ski till lunch then charge battery and whole day in memory. Comes with clear & dark lenses, will purchase amber and use only these forever. Can’t say enough.