Posted by a reviewer on Amazon

Didnt try gopro so cant say how attachment will work

Posted by a reviewer on Amazon

Editalthough the tube broke the first time i tried to attach it to the mask despite the instructions saying dont be afraid to push down hard on the tube

Posted by a reviewer on Amazon

It wont break after leaving a negative review i was contacted by the seller

Posted by a reviewer on Amazon

You have a tending to take long natural breaths but if water splashes into the snorkel you can get caught mid breath and your immediate reaction is to panic for lack of air

Posted by a reviewer on Amazon

I did speak with many snorklers who had other full mask snorkelsfrom other manufactures and all liked that the hicool has a longer snorkel causing less frequency of water leaking into the snorkel

Posted by a reviewer on Amazon

And last but certainly not least is gopro mount

Posted by a reviewer on Amazon

I really enjoy it but make sure its your size because if its too big or small for your face itll leak water

Posted by a reviewer on Amazon

First off it looks very goofy and is quite big