The hydration pack that takes you farther, faster
Thule Rail 4L is a smartly designed hydration hip pack that keeps you hydrated without skipping a beat on the trail.

• Locate and replace hydration hose without taking your eyes off the trail using the patented ReTrakt magnetic hose retention
• Includes 1.5L hydration reservoir
• One-handed, behind the back access to phone in soft, structured pocket
• Ride in comfort and descend with confidence with superior stability and breathable materials
• Organize tools and clothing accessories in interior pockets
• Quickly access nutrition with side jersey pockets
• Store additional small items in the front flap
• Stay visible with reflective details and a light attachment loop