Instinct Aluminum Whistle
Most running packs have a built-in plastic whistle that isn't very confidence-inspiring or durable. The Instinct Aluminum Whistle is noticeably louder and will attach to any pack via a key ring. At only eight grams, toss the factory whistle, replace it with the Aluminum Whistle, and increase your chances of being heard.
- Lightweight, but more importantly, durable.
- Easily attaches anywhere via the included key ring.
- Eight grams of ditch-your-plastic junk.