Born on the trails of the French Alps and race approved around the world.
Redefining a hydration pack comes from asking the right questions... introducing analytical observations & first hand experience in running the toughest conditions. At the heart of each revolutionary Instinct product is the desire to achieve a greater degree of function, accessibility and ergonomics; Total liberty of movement, zero obstruction and a second skin fit.

Delivery / Returns FREE UK Delivery orders over £30,00, Next Day Service + FREE UK Returns
Shipping Information - Details
UK Standard Delivery - This means that your goods will be processed as normal and shipped by Royal Mail 48. Ordered goods will usually arrive within 3 - 5 working days for most of the UK mainland. Baskets with a total value (before vouchers and promotional codes are applied) of £30.00 and over will qualify for FREE UK delivery.
UK FREE Delivery - to all of the UK on almost every product, as long as your total basket value is greater than £30.00 (delivery charges are applied to baskets with a total value of less than £30.00). - All FREE Delivery order will be sent via (UK) STANDARD SHIPPING (Royal Mail 48)
Need it Quicker? - Select DPD Next Working Day or Fast Delivery at checkout - Orders will be processed as normal and shipped by either DPD for Next Working Day service (excluding weekends) or the Royal Mail Tracked 24 service, ordered goods will usually arrive within (1 - 2 working days)
RETURNS & REFUNDS - Details
Return this item for free - If you change your mind on your purchase, you have a 30 days to return it for a refund or replacement subject to terms. All goods must be in new and unused condition and in their original packaging with all labels still attached
EVOLUTION 7L
Visit the Instinct store
£114.95
The EVOLUTION 7L will take you from 20km to ULTRA distances!
The ultimate minimalist solution for Ultra distance racing. Extreme versatility and minimal body contact.
- Volume: 7L
- Weight: 210g
- Size: One Size
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.
FRONTAL SOLUTIONS:
- 2 x 650ml hydration pockets + elastic compression cords with auto lock. Sits high for immediate and effortless access.
- 2 x 500ml feed storage pockets + internal elastic cord : extra large storage and easy access (right: 1 zipped pocket // left: 1 overlaying pocket).
- 1 x 100ml shoulder pocket + non-stretch internal cord ring + whistle + elastic for upper pole attachment. Pocket for your safety essentials and more
DORSAL SOLUTIONS:
- 1 x 800ml top horizontal pocket + elastic compression cord with auto lock. Easily access your rain gear right from the first drop without removing bag!
- 1 x 1.5L bottom horizontal pocket. Central access to safety kit, headlamp(s), gloves, arm warmers …
- 2 overlapping vertical pockets totalling 1.5L + closing buckle + velcro strap. Double main compartment. Water bladder compatible 1.5L.
POLE SOLUTIONS:
- 4 carrying options. Front: vertically right & left // Back: horizontally, vertically or diagonally.
ADJUSTMENTS & FIT
- 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.