On Running ON Ultra Vest 10L – Undyed White

ON Ultra Vest 10L – Undyed White

A lightweight, 10-liter trail running vest for long distances with a built-in hydration system and removable dry pack.

With a 10-liter capacity, this high-performance vest was built for distances at the longer end of the ultra spectrum. Tested and trialed by our elite team of trail athletes, its functional, modular design ensures a seamless experience on any trail, whether racing, training or chasing the high.

Ultralight yet tough, the breathable mesh material is tailored to provide a precise fit that stays put, while the patented-pending closure system and adjustable hem allow you to adapt the vest’s placement to best suit your body. Non-stretch materials minimize bottle bounce for a smooth and comfortable ride.

With two BPA-free Hydrapak® flasks, a detachable 5L dry pack and space for a hydration bladder on the back, the Ultra Vest 10L is packed with all the essentials – and then some. Think additional daisy chain loops and modular attachment for your poles or quiver bag, plus a zippered card pocket on the back.

Sizing:

• XXS: Fit chest size 80-84cm / 31.5-33″
• XS: Fit chest size 85-89cm / 33.5-35″
• S: Fit chest size 90-95cm / 35.5-37.5″
• M: Fit chest size 96-101cm / 38-40″
• L: Fit chest size 102-108cm / 40-42.5″
• XL: Fit chest size 109-115cm / 43-45.5″

Weight: 200g

Materials:

Main Fabric – 85% recycled polyamide, 15% elastane Pockets – 41% polyamide, 41% recycled polyamide, 18% elastane Removable Pouch – 56% polyamide, 44% recycled polyamide Other features – Undyed materials

Tech & Features:

• Energise on the fly – bungee loops keep the integrated Hydrapak flasks firmly in place, so you can hydrate and refuel hassle-free. Internal foam padding behind each flask provides extra comfort
• Safety first – prepare for the most unpredictable of trails with high-visibility reflective elements
• Safety first – prepare for the unexpected with an integrated emergency whistle and ID label
• Find your fit – thanks to a combination of removable bungee chords and daisy chain loops, weight is evenly distributed for a personalised fit
• Find your fit – the customisable closure system keeps weight evenly distributed for optimal stability
• Find your fit – side adjustments on waist for added support
• Supreme storage – leave no trace with a stash pocket with easy-clean lining
• Supreme storage – take what you need with you with two elastic front pockets
• Supreme storage – one zippered pocket to store a key
• Supreme storage – a quick-stash back pocket for a light jacket
• Functional fabrics – breathable, ultralight mesh hugs your body, allowing you to move freely, while strategic non-stretch zones around the chest and shoulders to help to maintain stability and minimise bounce
• Ready for anything – the integrated reservoir pocket on the back of the vest is compatible with a hydration bladder, ensuring you’ve got ample H2O on hand during demanding endurance events
• Modular design – made with 100% recycled ripstop nylon, a 1500mm PU coating and a silicone outer finish, the removable 5L pack is highly water-resistant. To seal the deal, it’s also seam-sealed