Once you get used to it you can do it quickly with one hand

you can pop the lenses out of their sockets from the inside so that you can thoroughly clean them though there is a trick to popping them back in

they do tend fog up when its humid and warm enough but as long as there is wind available you can pull them away from your face and point the fogged lens toward the wind to clear

the colours of the lens are beautiful more purple in real life than blue as shown in the picture thats due to the white background