Redefine performance on the trail with the Instinct Trail Ambition 4.5L Running Hydration Vest — the minimalist, race-ready pack engineered for distances from 10km to 70km. Weighing just 190g, this ultra-light, high-sitting vest delivers maximum freedom of movement, intuitive access, and customizable fit for elite runners and passionate trail enthusiasts alike.
The Ambition vest features refined, performance-driven design with intelligent pocket placement for instant access to hydration, fuel, safety gear, and poles — all without breaking your stride. It’s Ergo Quiver compatible and includes multiple pole storage options, plus an adjustable sternum strap system and side elastic lacing for a body-hugging, breathable fit that moves with you.
Crafted from lightweight, ventilated honeycomb mesh, this 4.5L pack stays cool, secure, and comfortable on all terrains and efforts. Whether training or racing, the Instinct Trail Ambition Vest supports your every kilometre with seamless function and zero distractions.
Key Features:
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Volume: 4.5L | Weight: 190g | One Size
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Minimalist design for unmatched freedom of movement
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Multiple intuitive pockets: fits 2 x 650ml flasks, nutrition, phone, safety kit, rain gear & more
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Breathable honeycomb mesh for sweat dissipation and comfort
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Front hydration access + rear horizontal stash pockets for quick gear grabs
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Dual adjustable chest straps & elastic side lacing for custom, secure fit
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Multiple pole-carry options: front and back
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Ergo Quiver compatible for modular gear expansion
Perfect for trail runs, mountain races, or endurance challenges, the Instinct Ambition 4.5L is the coolest, lightest way to go far. Discover comfort, efficiency, and performance in every mile.