Unisex On Running Ultra Vest 10L - Lightweight Hydration Pack for Trail Running, Hiking & Outdoor Adventures - Perfect for Men and Women Athletes

The long-anticipated On Running running vest is finally here! This 10-litre vest is purpose-built for long distances running and comes complete with a built-in hydration system and a removable dry pack.

Designed and tested with the On elite team of trail athletes, its functional and modular design guarantees a seamless experience, whether you're racing, training, or simply chasing that natural high on the trail.

This vest is all about being ultra-light yet incredibly tough. Crafted from breathable mesh material, it provides a snug and secure fit that won't budge. Thanks to the patent-pending closure system and adjustable hem, you can customize the vest's placement to perfectly suit your body. No more annoying bottle bounce; just a smooth and comfortable ride.

Equipped with two BPA-free Hydrapak® flasks, a removable 5L dry pack, room for a hydration bladder on the back,  additional daisy chain loops and modular attachments for poles or a quiver bag. The vest has it all!

Front Features

• 2 Integrated 500mL Hydrapak flasks secured by bungee loops. With internal foam padding behind each flask for comfort. 
• Breathable ultralight mesh that hugs your body
• Strategic non-stretch zones around chest and shoulders reduce bounce 
• 2 elastic front pockets for easy access to essentials 
• Leave no trace using the garbage stash pocket with easy-clean lining
• A customisable closure system for personalising your fit 
• Removable bungee chords and daisy chain loops
• Integrated emergency whistle and ID label 
• High-visibility reflective elements

Back Features

• Integrated reservoir pocket on the back of vest that is compatible with a hydration bladder 
• A removable 5L pack that is highly water resistant, made with 100% recycled ripstop nylon, a 1500mm PU coating and a silicone outer finish
• A quick-stash back pocket to pack away a light jacket 
• Side adjustments on the waist for added support
• Small zippered pocket on the back holds a few credit cards or snacks 

Product Code:  2UD3002-0864, -0553