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Swiss Performance Running Shoes & Clothing

Product gallery item 1 out of 5 On Ultra Vest 10L Undyed-White Unisex Vests

Ultra Vest 10L Undyed-White

R$1,049.00

A lightweight, customizable, 10-liter trail running vest for long distances. Includes two 500 ml Hydrapak® flasks plus space for a hydration bladder.


Also available as Ultra Vest 5L

  • Tommy is 188 cm / 6′2″ and is wearing a size M

  • Maguette is 175cm / 5'9" and is wearing a size M

Key features

  • Weight: 280g

  • Lightweight mesh for optimal airflow and comfort over long distances

  • Additional daisy chain loops so you can attach what you need

  • Strategic non-stretch zones minimize bounce and movement

  • Two zippered pockets plus side pockets for stashing gels

  • Patent-pending chest closure for a customizable fit

  • Tailored pockets for two 500 ml Hydrapak® flasks plus space on the back to hold a hydration bladder

  • Detachable 5L dry pack with water-resistant taped seams for protection against the elements

  • Plenty of modular attachment points for poles and quiver bag

How to wear it

  • Ultra Vest 10L
  • Cloudultra 2
  • Merino Ultra Sock
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Tested by the best

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.

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Optimized for stability

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.

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Easy access to essentials

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.

Go behind the seams

Explore the Ultra Vest 10L's trail-taming features.

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Our mission at On is to ignite the human spirit through movement. Inspired by athletes. Powered by Swiss engineering. Move with us, and Dream On.

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