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Hydration pack

Thule Rail Backpack 18L

The ultimate mountain biking hydration backpack, complete with e-bike battery storage, a removable back protector and a 2.5L hydration reservoir.



  • Ride further with a spare battery (up to 410x100x100mm) in the dedicated, stabilized pocket
  • Protect your central back and spine from impact or injury with removable, lightweight Koroyd CE certified Level 1 back protector
  • Stay hydrated without slowing down using the hands-free ReTrakt magnetic hose return system
  • 2.5L HydraPak reservoir features a slide closure for easy cleaning and a locking bite valve to prevent leaks before and after your ride
  • Superior stability for aggressive downhill riding and jumping with a secure fit
  • Included rain cover keeps gear dry in inclement weather
  • Keep tools, pumps, snacks and accessories organized in dedicated internal pockets
  • Dual front pockets store small essentials
  • Stay cool with a breathable, air mesh back panel
  • Easily access nutrition, a phone or tools without having to remove the pack thanks to lower-back jersey pockets with secure hook and loop flaps
  • Store a jacket or extra layers in the front shove-it pocket
  • Stay visible with reflective details and a light attachment loop

Technical specifications

Dimensions 9.45 x 9.45 x 18.11 in
Volume 18 L
Weight 2.29 lb
Reservoir capacity 2.5 L
Material Nylon
Color Dark Slate
Model number 3204482


Thule BringIt! GuaranteeThule is dedicated to providing exceptional products that are quality tested and guaranteed against defects in materials and workmanship.

View warranty details

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