instinct trail running available from Fast and Light


From 110 CHF to 142 CHF

EVOLUTION : from 20km to Ultra distances!

The ultimate minimalist solution for Ultra distance racing.

The EVOLUTION offers extreme versatility while achieving minimal body contact. It perfectly adapts to your different training & racing needs.

  • Volume: 7L
  • Weight: 210g
  • Size: One Size

[ Price variation : without or with soft flasks ]

With 2 Soft Flasks
Include 2 x 600ml HydraPak Soft Flasks

Only 1 left in stock


from 20km to Ultra distances!

  • Compact, light & breathable, the EVOLUTION goes unnoticed.
  • Extendible, its volume varies and responds to the requirements of an Ultra.
  • Whether it be water bladder, bottles, or soft flasks, the choice is yours.

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

Adjustable front sternum straps and our unique side elastic 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.


  • 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 and easy access (right: 1 hidden pocket // left: 1 overlaying pocket).
  • 1x 100ml shoulder pocket + non-stretch internal cord ring + whistle + elastic for upper pole attachment. Pocket for your safety essentials and more.


  • 1x 800ml top horizontal pocket + elastic compression cord with auto lock. Easily access your rain gear right from the first drop without removing bag!
  • 1x 1.5L bottom horizontal pocket. Central access to safety kit, headlamp(s), gloves, arm warmers …
  • 2 overlaying vertical pockets totalling 1.5L + closing buckle + velcro strap. Double main compartment. Water bladder compatible 1.5L.


  • 4 carrying options. Front: vertically right & left // Back: horizontally, vertically or diagonally.


  • 2 adjustable chest straps mounted on 20cm 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 EVOLUTION 7L 2020 US
InStinct Web Focus EVOLUTION back 1 2020 trail race vest Fast and Light CH 1
InStinct Evolution Dimensions Fast and Light CH
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Shipping & Delivery
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We ship with Swiss Post Economy, which usually arrives in 2 working days.

For larger packages such as skis we use DPD courier services.

Free postage in Switzerland is offered for all purchases over 100 CHF.