The Camelbak Arete 18 Hydration Pack 18L with 1.5L Reservoir in Charcoal/Koi

Just flip it right side out, and you’ve got room for 16.5L gear capacity for snacks, layers, essentials and 1.5L/50oz of water.

Its lightweight materials and packable design also make it an excellent travel bag that won’t add bulk to your luggage. We updated this version of the Arête™ 18 with additional pockets to keep your gear organized, along with a removable sternum strap.

With its lightweight materials and reversible, double-duty design, the Arête™ 18 is one of the most versatile packs we make. When you’re not wearing it, it reverses into an insulated reservoir sleeve—perfect for holding your water supply steady inside a larger pack.

Camelbak Arete 18 Hydration Pack 18L with 1.5L Reservoir in Charcoal/Koi
The brand new CRUX™  which delivers 20% more water per sip, with an ergonomic handle for easier refilling and an on/off lever that makes it easy to prevent leaks
Reversible design converts into an insulated reservoir sleeve
Ultralight and compressible materials
Removable sternum strap for a custom fit
Secure zippered pocket for essentials