On Running ON Ultra Vest 5L – Undyed White

ON Ultra Vest 5L – Undyed White

A lightweight, 5-liter trail running vest for short-medium distances with a built-in hydration system and removable dry pack.

With a 5-liter capacity, this high-performance vest was built for shorter distances. Tested and trialed by our elite team of trail athletes, its thoughtful, minimalist 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 allows you to adjust the vest’s placement to best suit your body. Non-stretch materials minimize bottle bounce for a smooth and comfortable ride.

With two 500 ml Hydrapak® flasks for water, plenty of pockets and a simple fastening system that tightens, the Ultra Vest is packed with all the essentials – and then some. Think additional daisy chain loops that are strategically placed to allow you to attach your poles or quiver bag.

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: 127g

Materials:

Main Fabric – 85% recycled polyamide, 15% elastane Pockets – 41% polyamide, 41% recycled polyamide, 18% elastane

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 – the customisable closure system keeps weight evenly distributed for optimal stability
• 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