instinct trail running available from Fast and Light


From 90 CHF to 120 CHF

AMBITION: THE new standard in reaching Ultra distances.
Minimalist, refined & optimized.

Audacious, perfectly balanced, AMBITION offers extraordinary freedom of movement & accessibility.
Racy & performance oriented, it will support you in any race or training run from 10 to 70km.

Trail enthusiasts & elite Ultra runners; a new trail starts here!

  • Volume: 4.5L
  • Weight: 190g
  • One Size

[ Price Variation : with or without soft flask ]

With 2 Soft Flasks
Add 2x 600ml HyrdaPak Soft Flasks

available ex-warehouse


The coolest & lightest way to run from 10 to 70km.

  • Minimalist, refined & performance oriented, AMBITION is the coolest & lightest way to go further.
  • Compact and extremely versatile, it offers clever storage, extreme function and a fit so natural that it’s forgotten.

High sitting, the AMBITION allows immediate & easy access to hydration, feed, poles & adjustments.

Adjustable front sternum straps and our unique elastic side lacing system allow for a custom fit to almost any body type.
Discover stability, liberty of movement, immediate access to storage and unconstrained breathing.

Optimal positioning of pockets & adjustments for natural, effortless & intuitive access.
Lightweight & breathable honeycomb mesh ensures ventilation and sweat dissipation without sacrificing strength or reliability.

AMBITION easily carries :

  • 2 x 650ml of hydration
  • Feed
  • Rain jacket
  • Rain pants
  • Long Sleeve
  • Safety Kit
  • Phone
  • Headlamp(s)
  • Poles


  • 2x 650ml hydration pockets + elastic compression cords with auto lock.. Sits high for immediate and effortless access.
  • 2x 600ml feed storage pockets + internal elastic cord: extra large storage & easy access (right side: +1 hidden pocket // left side: +1 overlaying pocket).
  • 1x 100ml shoulder pocket, non-stretch internal cord ring + whistle + elastic loop for upper pole attachment. For safety essentials and more …


  • 1x 600ml top horizontal pocket + elastic compression cord with auto lock. Easily access your rain gear right from the first drop without removing bag!
  • 1x 600ml bottom horizontal pocket. Central access to safety kit, headlamp(s), gloves, arm warmers…
  • 1x 800ml vertical pocket + closing buckle. Perfect storage for rain pants, long sleeve t-shirt and even your poles.


  • 5 carrying options. Front: vertically right & left // Back: horizontally, vertically or diagonally. Directly in the dorsal vertical pocket.


  • 2 adjustable chest straps mounted on 20 cm sliders = custom fit vertically and horizontally.
  • 2 double “S” elastic cross-lacing with auto lock: “on the fly” side adjustment!
  • 1 elastic compression cord with auto lock for top back pocket.
InStinct contents AMBITION 4.5L 2020 US
InStinct Web Focus AMBITION back 1 2020 trail race vest Fast and Light CH 1
InStinct Ambition Dimensions trail race vest Fast and Light CH
Shipping & Delivery
Swiss post logo

Free postage in Switzerland and Europe is offered for all purchases over 60 CHF.

Switzerland: We ship with Swiss Post Economy, which usually arrives in 2 working days.

Europe: We ship with Swiss Post Economy, which usually arrives in 5 working days.

For larger packages such as skis we may use a different courier services.

Please see country options at checkout to see which countries we currently ship to.

For any orders outside of Switzerland and Europe, expect to pay customs duties, import paperwork and the country destination VAT.