READ: How To Avoid Neck & Back Pain While Camping This Summer

Aire Flex 18L Race Bike Hydration Pack

The Aire Flex 18 is a lightweight hydration pack with enough storage for the longest races and events.
  • 4 front pockets: two stretch-mesh front slash pockets, two secure front zipped pockets accessory pocket with key clip.
  • Ultra-light wicking air mesh adjustable back straps for ultimate comfort.
  • Reflective detailing for visibility at night and during low light.
  • Quick and easy use single finger zips, great for races and on-the-go.

FREE DELIVERY within 1 - 4 working days

Subject to delivery postcode

Why Buy The Aire Flex 18L Race Bike Hydration Pack?

High Quality

High Quality

Made from high quality materials.



Adjustable chest strap with height slider.

Moisture Management

Moisture Management

Wicks away excess sweat and moisture.

Reflective Details

Reflective Details

Improves safety and visibility in low light.

Key Features


Does not distract or weigh you down when running.

Secure Storage

For more valuable items such as your phone, keys and a map.

Air-Mesh Shoulder Straps

Provides comfort as well as balancing the weight of the pack.


Encourages cool air to circulate.

Frequently Asked Questions

One size fits most (30-50? chest measurement)
Made from 6000 Rip-stop and lightweight nylon.
Two 500ml flexi-straw flask's included (1 litre total capacity).
It weighs approxamitely 215g.

More about the Aire Flex 18L Race Bike Hydration Pack

Designed in a race vest style it is easily adjustable .Once adjusted it hugs the body making it comfortable over the longer distances. Approx. 18 litres of storage space and pockets for when you’re tackling those longer distances without the added bulk that comes with most hydration back packs. Made from a 6000 Ripstop lightweight nylon fabric, this pack is durable, yet light and comfortable to wear. The wicking air-mesh shoulder straps with padding give this a more comfortable, flexible fit.

Air flow channel in the back adds to the comfort level. Reflective details help you stay safe during low level light conditions. Fully adjustable shoulder and chest straps help to make this a custom fit for most body shapes. Single finger zipper loops make it quick and easy to access your belongings. The main compartment includes a small pocket plus a zippered mesh pocket to help you organise the load and evenly distribute weight. Hidden mesh external storage system for wet clothes or helmet to keep these items separate from the main compartment.