-7%Sold out
instinct trail running available from Fast and Light


Original price was: CHF75.00.Current price is: CHF70.00.

PX: the lightest, most minimalist non-compressive & no bounce option for carrying your essentials whilst on a run.

Road & trail, for 1 hour, 20km or your next marathon.
Precursor of an all new category; neither pack nor belt.

Drop your belt. Sling on the PX!

  • Volume: 3.1L
  • Weight: 160g
  • Size: One Size

Out of stock


The simple, lightweight & minimalist option for carrying your essentials.

  • Non-compressive & no bounce.
  • Wonderfully simple, PX discretely carries all your essentials.
  • Like a second skin, it’s designed to go unnoticed!

High sitting, the PX 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, absolute freedom 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.
PX easily carries :

  • 2 x 500ml of hydration
  • Feed
  • Rain jacket
  • Safety Kit
  • Phone
  • Headlamp
  • Poles


  • 2x 500ml hydration pockets + elastic compression cords with auto lock. Sits high for immediate and effortless access.
  • 2x 500ml feed storage pockets: extra large storage & easy access.
  • 1x 100ml shoulder pocket, non-stretch internal cord ring + whistle. For your safety essentials and more …
  • Front vertical pole attachment (both left and right side).


  • 1x 500ml horizontal pocket with elastic compression cord and auto lock + velcro locking system. Easily access your rain gear right from the first drop without removing bag!
  • 1x 300ml bottom horizontal pocket with snap button closure gives central access to your safety kit, headlamp(s), gloves, arm warmers…


  • 1 front pole attachment solution. Front: vertically right & left


  • 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!
  • 2 elastic compression cords with auto lock for top and bottom back pocket.
InStinct contents PX 3.1L 2020 US
InStinct Web Focus PX back 2 2020 trail race vest Fast and Light CH 1
InStinct PX 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.