33 Genius REI Products You’ll Probably Wish You’d Discovered Years Ago

1. A four-function whistle that's a compass, magnifying glass, thermometer, and, of course, emergency whistle all in one handy-dandy little tool. Perfect to clip onto your pack just in case.

Promising review: "Good multitool I like to have on my daypack. Clipped onto my sternum strap for easy access. Very lightweight." —Luis M

Price: $6.50

Continue reading to learn moure about genius REI products, written by Rachel Dunkel.

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I’m also a fan of the venerable Sawyer Squeeze. Just collect water and drink!

Trey French
ライター

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Sawyer’s picaridin lotion lasts a long time, stores well in survival kits and cars, and doesn’t have the laundry-list poison control label like DEET sprays.

Sean Gold
Founder & Lead Writer

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I’m not a fan of bugs, so Sawyer Picaridin spray is always in my pack.

Isis Briones
Writer and Editor