No they are not but they are very comfortable, light. They don't seem to slip off the face.

Hmmmm.They are all plastic, so bending under warm/hot water may work...But I would suggest the space is normal/narrow, and an on face test would be best idea.

No not really. The rubber nose piece fits onto two lugs on the frame which is rigid, so can't be adjusted. The only adjustment comes from rotating the rubber nose piece around the lugs

Unfortunately the nose inserts are not adjustable, but as they are soft rubber they tend to mould comfortably around the bridge of your nose.

Nose piece is rubber but not adjustable.

grip the lense at the nose piece centre between thumb and forefinger and pull down. then pull the side edges out of their grooves.
To reinsert, reverse the above by inserting the side corners each into their grooves and then pushing the lense centre above the nose pieceand it will snap into place,

Know what you mean...they are so lightweight you are afraid of breaking them... I removed rubber nose guard, then pulled down the lenses from the centre. Holding the arms in one hand bend these together slightly and slip the corners out of the arm holders.Then select your new colour and fit the ends first before clicking centre back in.

Pull the lenses in the middle down away from the frame. The tension on the lense is released and will then come away from the frame, leaving only the two ends of the lens in the frame, these can then easily be pulled out. Putting a new lens is the opposite procedure. First position the ends of the lens into the frame. You need to make sure the ends of lens are firmly located in the frame before clicking the middle of the lens back into the rest of the frame. If the ends of the lens are not properly located they will keep popping out every time you try to push the middle of the lens into the frame

I found this - but pull the middle nose section out first, then the rest will follow. Again to put the new lense in, push the edges in first then click the middle nose section in :)

If you hold sunglasses frame just above nose area and tug downwards on lenses they will come out quite easily.
When putting new lenses in, clip each side in first then push up lense into nose area (in groove) until it 'clicks'.

You could try the spray that you can purchase for swimming goggles that stops them fogging - maybe that will stop you running glassess fogging too!

No they don't have a hydrophobic coating, but they are great glasses all the same

The ladies glasses are more narrow for the female face and the arms are closer together. I prefer the colour of the mens glasses but they didn't stay on my head as they are too big.

Yes, as far as the sticker on the lens says.

They come with clear lenses ( hence the three lenses title).

I wouldn't suggest it. They are not designed for night time vision. They do work well in low light conditions, that is a cloudy day.