The simplest, cheapest way to dive or perhaps to die.

[АлександрД]

same sh!t SEAGOW
or SCORKL - Breathe underwater with TOTAL freedom just hose added...
and here again - most important KnowHow - Orange color

BUT! price looks very nice! is it real?

 

[caruso]

I like the one that you fill with a hand pump. You could swap out the one that comes with it, with a really long hose and someone on the surface can keep filling your tank while you enjoy really long dives.