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Arete 18 Backpack


Arete 18 Backpack

Arete 18 Backpack is available to buy in increments of 1

With its lightweight materials and reversible, double-duty design, the Arête™ 18 is one of the most versatile packs CamelBak makes. When you’re not wearing it, it reverses into an insulated reservoir sleeve—perfect for holding your water supply steady inside a larger pack. Ready for a quick hike? Just flip it right side out, and you’ve got room for snacks, layers, essentials, and 1.5 liters of water. Its lightweight materials and packable design also make it an excellent travel bag that won’t add bulk to your luggage. CamelBak updated this version of the Arête with additional pockets to keep your gear organized, along with a removable sternum strap.


  • Features 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
  • Padded nylon back panel
  • Crux Reservoir - Includes a Crux reservoir, which delivers 20% more water per sip, with a self-sealing bite valve and ergonomic cap.
  • Crux On/Off Lever - Easy and intuitive, leak-proof On/Off lever. Water when you want it, none when you don't.
  • Pack Capacity: 16.5L (1100 cu in)
  • Hydration Capacity: 1.5L (50 fl oz)
  • Quick Link Disconnect: No
  • BPA/BPS/BPF Free: Yes
  • Total Weight: 10 oz (300 grams) pack only
  • Dimensions: 15.9 x 9.1 x 9.1 in (40.5 x 23 x 23 cm)
  • Torso Length: 15-21 in (38-53 cm)
  • Waist Belt: N/A
  • Number of Exterior Pockets: 3
  • Manufacturer Warranty: Lifetime