
Ronhill
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Designed for runners who value simplicity, the Ronhill OTM Vest is an ultra-minimalist hydration vest built for comfort, versatility and performance. Whether you’re hitting the road or tackling technical trails, this vest offers a barely-there fit that adapts like a second skin, giving you full freedom to move.
About OTM Vest
With a sleek profile and no bounce, it’s made for runners who prefer streamlined gear that does its job without getting in the way.
The vest’s thoughtful layout includes two front stash pockets perfect for soft flasks or gels, and a secure vertical front pocket that’s ideal for your phone. A larger upper compartment and quick-access lower stash pocket ensure you can carry extra layers, nutrition, or small essentials with ease. With two fuel flask straw loops and V-strap adjustment for a snug fit, you get smart storage and instant access to everything you need on the go.
Built with lightweight, breathable stretch mesh, the OTM Vest keeps you cool even on long efforts. It fits all body types with ease and is finished with reflective detailing to help you stay seen during early morning or late evening sessions. Whether you’re chasing a new PB or just heading out for an easy run, the OTM Vest delivers practical functionality without overcomplicating your kit.
Durable, unrestrictive and easy to adjust, this vest is ideal for anyone who wants to carry hydration and essentials comfortably over any distance, without the bulk of a full pack.
How does it work
The Ronhill OTM Vest is engineered to mould to your body using lightweight, stretch mesh for maximum breathability and comfort. Its pocket system allows you to balance weight across the front and back, reducing bounce and improving access to essentials mid-run. With adjustable sternum straps and a smart V-strap configuration, it delivers a tailored fit for all body shapes, maintaining stability without restricting movement.
Its modular design offers 4 litres of capacity – plenty of space for fuel, hydration, a lightweight jacket, and your phone – all while keeping things compact. The reflective trim ensures visibility in low-light conditions, rounding out a vest that does everything you need and nothing you don’t.
Tried and tested
Real feedback from the XMiles community.


