On-Running Ultra Vest Pro

Updated to optimize your performance, the On Running Ultra Vest Pro hydration vest is a top choice for each of your trail sessions.

A removable and waterproof 5-liter bag is integrated at the back to protect your essentials from the elements when needed.

The included two soft flasks of 500 ml each allow you to easily stay hydrated throughout your route.

You have multiple storage options, on the straps and the back, to carry your personal items and supplies.

Its innovative closure system adjusts perfectly to your body shape for reliable support. Removable tightening straps ensure good overall stability.

The mesh fabric guarantees maximum ventilation kilometer after kilometer, while the reflective elements promise excellent visibility in low light conditions. 

Key features of the On Running Ultra Vest Pro hydration vest

• Total volume: 10 liters
• 1 removable waterproof 5-liter bag with sealed seams
• 2 included 500 ml Hydrapak soft flasks: hydration
• 2 expandable compartments for bottles
• 1 large back compartment compatible with a hydration reservoir (not included)
• 1 flexible zippered pocket at the back
• 2 mesh side pockets
• 3 pockets, including 1 zippered, on the straps
• 2 adjustable straps at the chest
• Adjustable and removable closure system: support and ease
• Lateral drawstrings
• Breathable mesh fabric on the back and straps: ventilation and comfort
• Combination of stretch and non-stretch material: freedom of movement and reduction of bouncing
• Modular attachments and fastenings
• Key holder
• Safety whistle 
• Compatible with an Ultra Quiver cover
• Fitted cut: limits bouncing and swaying 
• Reflective elements: visibility and safety
• 100% designed from recycled materials: eco-friendly
• Unisex model
• Weight: 300 g