@hikingdude I use them in the high mountains in winter. Breathing in super cold air tends to give me a bad cough. Also essential for me in Kamchatka where it was - 30C most days.
Grumpy old mountain man living in Spain
@hikingdude I use them in the high mountains in winter. Breathing in super cold air tends to give me a bad cough. Also essential for me in Kamchatka where it was - 30C most days.