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The EKLIPSE 12L is the ultimate solution for ultra-distance racing and long runs, offering unmatched functionality, compactness, and weatherproof protection. Engineered to excel in races up to 180 km and beyond, this pack combines lightness, comfort, and expandable volume to deliver exceptional versatility and durability. The EKLIPSE 12L is designed to segment, differentiate, and protect your equipment, ensuring it withstands the most demanding weather conditions.

Product Features

  • Ultimate Functionality
  • Lightweight and Comfortable
  • Custom Fit
  • Optimal Storage Solutions
  • Hydration and Fuel Accessibility
  • Durable and Weatherproof
  • Versatile Attachment Points
  • Breathable and Ventilated
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Select Type: EKLIPSE 12L
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Product Description

Weighing a mere 380g and with a 12L capacity, the EKLIPSE 12L offers extreme functionality, accessibility, and protection. Whether you're tackling a gruelling trail race or embarking on an adventurous trek, this pack provides unconstrained breathing and a fit so natural, it becomes an extension of your body. Its high-sitting design allows for immediate and easy access to hydration, fuel, poles, and adjustments, making it an indispensable companion for ultra-distance athletes.

The EKLIPSE 12L features adjustable front sternum straps and a unique elastic side lacing system, allowing for a custom fit to almost any body type. This innovative design ensures stability, freedom of movement, and immediate access to storage, all while promoting unconstrained breathing. The optimal positioning of pockets and adjustments facilitates natural, effortless, and intuitive access to your essentials. The lightweight and breathable 3D honeycomb mesh guarantees ventilation and sweat dissipation without compromising strength or reliability.

One of the standout features of the EKLIPSE 12L is its unique back compartment, a 360° water-resistant flexible shell. This ingenious design includes a wide-angled “door” for immediate access, exceptional storage, and organization, making it perfect for trail running, ultra-trail and XL distances, adventure racing, fast and light outings, and day or weekend trekking.

The pack's frontal solutions include two 650ml hydration pockets with elastic compression cords for immediate and effortless access, and two 600ml feed storage pockets with internal elastic cords for extra-large storage and easy access. Additional frontal storage includes a hidden pocket and overlaying pocket on the right side and a zipped smartphone pocket on the left side, along with two 150ml zipped shoulder pockets for safety essentials.

Dorsal solutions of the EKLIPSE 12L include a 1.5L top horizontal pocket with elastic compression cords, a 2.0L water-resistant zipped vertical pocket compatible with water bladders, and a 3.7L water-resistant zipped main storage door with five internal mesh compartments. The pack also features a direct access zipped overlaying pocket, and two overlapping bottom horizontal pockets with elastic compression cords and unique hook fixtures.

For pole solutions, the EKLIPSE 12L offers four attachment options: vertically on the front right and left, and horizontally, vertically, or diagonally on the back. Various attachment points allow for securing large items on the outside, such as a sleeping pad, bag, compact tent, or helmet. Adjustments and fit are easily managed with two adjustable chest straps mounted on 20 cm sliders, double “S” elastic cross-lacing for on-the-fly side adjustment, and three elastic compression cords with auto-lock for top and bottom back pockets.

  • Ultimate Functionality: Extreme functionality, accessibility, and protection for ultra-distance racing and long runs.
  • Lightweight and Comfortable: Weighs only 380g with a 12L capacity, ensuring lightness and comfort.
  • Custom Fit: Adjustable front sternum straps and elastic side lacing system for a custom fit to almost any body type.
  • Optimal Storage Solutions: Ingenious back compartment with a 360° water-resistant flexible shell and wide-angled door for immediate access and organization.
  • Hydration and Fuel Accessibility: High-sitting hydration and feed pockets for immediate and effortless access.
  • Durable and Weatherproof: Made from 100% 30D Nylon 6.6 Cordura® ripstop with a silicone liner, ensuring extreme lightness, resistance, and 360° water resistance.
  • Versatile Attachment Points: Multiple pole attachment solutions and various points for securing large items on the outside.
  • Breathable and Ventilated: Lightweight and breathable 3D honeycomb mesh for ventilation and sweat dissipation.
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)


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

About Instinct

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.