Noopel’s been clipped to my pack for a while now—never thought I’d get so much use outside of actual emergencies! The double tube really does save your lungs when you’ve already been hiking six miles and run into a surprise storm. It cuts through wind better than any “single blast” whistle I’ve tried, which is a relief because I’m pretty tired of yelling when my voice is already shot from playing gigs the night before. Durability-wise, mine’s held up to more than a few accidental dunks and drops, including a particularly muddy trip down