Ambition Vest (4.5L)

$179.00Free Shipping

In stock

Take on your next ultramarathon or long distance training run with the Instinct Ambition 4.5L Hydration Vest Pack. This vest provides plenty of convenient storage for the optional extra 600ml soft flasks, a phone, gels, extra apparel layers, and other small accessories.

You can easily personalise the fit thanks to the adjustable sternum and side straps, which eliminate unwanted bouncing. The lightweight Ambition Vest is made with small and large mesh patterns in order to allow for airflow while quickly removing sweat to keep you dry.


  • Dual adjustable sternum straps to customize the fit
  • Adjustable side straps secure the pack load to prevent bouncing
  • 5 front holster pockets for flasks, a phone, gels, headlamp, or other accessories
  • Left shoulder pocket with an emergency whistle and key clip
  • 2 upper back mesh pockets for a jacket and light apparel
  • Lower back pocket for a headlamp, gloves, or medical kit
  • 5 trekking pole holder options on the front and back
  • Breathable mesh fabric breathes to keep you cool and remove sweat
  • Light reflective details improve visibility in low-light conditions
  • Weight without flasks: 190g


  • Dual front flask holsters: 8cm W x 17cm H
  • Front lower holster pockets: 13cm W x 18cm H
  • Upper back pockets: 15cm W x 13cm H
  • Lower back pocket: 30cm W x 13cm H
  • Total volume: 4.5L


  • Nylon and polyester