CamelBak Blowfish Hydration Back Pack

What are the delivery costs?

We offer Free UK Mainland Delivery on all orders over £20. Products shipped to outlying UK regions are excluded from free shipping.

Standard delivery is normally 2 - 5 working days.

Please view our delivery page for full information on UK and international delivery costs.

Perfect all-around commuter or trail pack that expands on demand for greater flexibility. With one zip of the expansion panel, your overall cargo volume expands over 40%. And whatever you’re carrying, the air-mesh harness, hip belt and adjustable sternum strap keep your load well-balanced and comfortable. Media pocket protects your smartphone, iPod, camera or other devices while keeping them close at hand. Reflective back strip with tab to click on a blinker for early morning and evening safety. 2L Antidote® reservoir keeps you well hydrated.


Key Pack Features:

  • Expandable zip panel for extra gear
  • Media pocket
  • Bike tool organizer pocket
  • Front and back reflectivity
  • Blinker tab

Designed to Carry:

Multi-tool, pump, spare tube, extra layers, lunch, MP3, phone, wallet, keys

Antidote Reservoir Features:

1/4 turn - easy open/close cap, lightweight fillport, dryer arms, center baffling and low-profile design, patented Big Bite™ Valve, HydroGuard™ technology, PureFlow™ tube, easy-to-clean wide-mouth opening 

Product Specification : 

  • Pack-Only Weight: 1 lb 4 oz / .58 kg
  • Back Panel: AC™ Air Channels with individual foam pods give increased air flow to keep your back cool.
  • Belt: N/A
  • Harness: Air mesh with slider sternum strap
  • Fabric: 210D nylon, 600D poly

Total Capacity:

  • Open: 1100 cu in / 18L + 2L reservoir
  • Closed: 670 cu in / 11L + 2L reservoir

Pack Cleaning

We recommend wiping your pack with a damp cloth to remove dirt. If the pack is extremely dirty and needs a deeper cleaning, soak it in cool or warm water with a very mild soap. Rinse the pack thoroughly with cool water. If soap residue remains in the fabric, it may create suds if exposed to water or sweat.

DO NOT wash your pack in a washing machine. Machine washing may damage the pack or affect the integrity of the fabric and fasteners, and will void the Got Your Bak™ Guarantee.

Reservoir Cleaning 

The best way to care for your reservoir is to clean and dry it after every use, especially if you fill the reservoir with anything other than water. However, if a reservoir has not been cleaned after every use, and mold or discoloration develops:

Use hot water and a CamelBak Cleaning Tablet. Or use 2 tablespoons of baking soda or bleach instead of CamelBak Cleaning Tab. Mix the solution inside your reservoir and elevate the reservoir above the tube and Big Bite Valve. Pinch the bite valve, allowing the solution to flow into the drink tube and fill the bite valve.

Let the reservoir and cleaning solution sit in the reservoir and drink tube for about 30 minutes.

Wash the reservoir with hot water and mild soap. Be sure to completely rinse away the cleaning solution in the reservoir and drink tube before using again. You can also use CamelBak brushes from our Cleaning Kit to scrub your reservoir and drink tube. Brushes are the best way to ensure you are scrubbing all of the areas of the reservoir clean.

Once the reservoir is clean, be sure to air dry overnight so no moisture is trapped inside, which can cause mold to grow.

These steps will make your reservoir safe for use. If there are still spots left behind, these are permanent mold stains that may not be removable. However, your reservoir is still safe and usable after you’ve cleaned it.


Occasionally, without notice, manufacturers change product design and/or specifications.