[Paddlewise] Breathing tube

I just read an article in the new issue of Sea Kayaker magazine (Dec 98) titled
Trial By Water: Capsized Off Victoria, BC. In the article the author mentioned 
that he forgot to bring his breathing tube, which would have enabled him to
breathe the air from the cockpit while upside down. Can anyone tell me about
this tube; what is it made of? what size is it? How is it used? etc?

Richard M.


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