Originally Posted by
MnHillBilly
But having to layer something over the nose and mouth while you're working at an effort isn't really a great idea if you're still getting your conditioning in shape.
I use a neoprene ski mask that velcros behind my neck. The stock ventilation holes were too restrictive, so I cut out two square openings on either side of the seam in the middle. Now I can drink through it and breath through it, and I'm good for pretty much anything southern New England can dish out.
They're pretty cheap, like $15. Might be worth trying for you.
BL