Spare frameless, folding mask in a pocket ...
I did it before, but it really hit home due to my own boneheadedness on my first dive in Cozumel last month. Descending, paying more attention to my son who was on his first dive in a long while, my mask was a little tight so I figured I'd loosen it a notch on both sides ... again, helocoptering my son, I reached up and grabed the buckles and 'click' ... hit the quick release strap connectors, both, at the same time ... and away goes my mask ... now, somehow, I was able to grab my strap and mask and clip it back together without major disruption, but even if I couldn't, all I needed to do was grab my backup instead of trying to get everyones attention and thumbing the dive or S&Ring my mask from the bottom.
I did it before, but it really hit home due to my own boneheadedness on my first dive in Cozumel last month. Descending, paying more attention to my son who was on his first dive in a long while, my mask was a little tight so I figured I'd loosen it a notch on both sides ... again, helocoptering my son, I reached up and grabed the buckles and 'click' ... hit the quick release strap connectors, both, at the same time ... and away goes my mask ... now, somehow, I was able to grab my strap and mask and clip it back together without major disruption, but even if I couldn't, all I needed to do was grab my backup instead of trying to get everyones attention and thumbing the dive or S&Ring my mask from the bottom.