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X 10L

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The X 10L Ultra Distance Racing-Training Vest sets the new benchmark in extreme function, accessibility, and ergonomics. Designed to meet the demands of both aspiring trail runners and elite athletes, this vest offers the most intelligent storage, function, and versatility available in the market. Its phenomenal stability and comfort ensure that you stay focused on your performance, regardless of the terrain or conditions.

Product Features

  • Ultimate Functionality
  • Optimal Storage
  • Lightweight and Compact
  • Custom Fit
  • Versatile Hydration Options
  • Comprehensive Storage Solutions
  • Enhanced Stability and Comfort
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Select Type: X 10L
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Product Description

With a volume of 10 litres and a weight of just 297 grams, the X 10L vest is engineered to be ultra-compact while maximising storage capacity. Its innovative design emphasises minimal body contact and optimal breathability, ensuring that you remain cool and comfortable during intense activities. The vest is one-size-fits-all and fully adjustable, making it suitable for a wide range of body types. Additionally, the price varies depending on whether you opt for the inclusion of 2 x Instinct Hydra Cell (600ml) soft flasks, offering flexibility based on your hydration needs.

One of the standout features of the X 10L vest is its exceptional accessibility. Adhering to Instinct’s goal of allowing runners to access essentials without removing the vest, the high-sitting design offers remarkable ease of use. Whether you prefer a water bladder, bottles, or soft flasks, the vest accommodates your choice seamlessly. The well-positioned pockets and adjustable features provide natural, effortless, and intuitive access, ensuring that hydration and nutrition are always within reach. The shoulder straps are equipped with unique storage options for various feeds and hydration systems, while two extra-large zipped pockets securely store your smartphone or other important items.

The vest's lightweight and breathable honeycomb mesh material ensures excellent ventilation and sweat dissipation without compromising strength or reliability. The adjustable front sternum straps and a refined side elastic lacing system enable a customised fit, enhancing stability and comfort. This design ensures that the vest stays snug without restricting your breathing or movement, allowing you to run with freedom and confidence.

The X 10L vest is meticulously designed to offer comprehensive storage solutions both frontally and dorsally. The front features include two 650ml hydration pockets, two 600ml feed storage pockets, two XL zippered pockets for smartphones, and a 150ml zipped shoulder pocket with a whistle for safety essentials. The back of the vest provides an 800ml top horizontal pocket, two bottom horizontal pockets, a side access pocket, a vertical top access pocket compatible with a 2L water bladder, and a main 4-litre zippered compartment for larger items. This extensive range of pockets ensures that all your gear is organised and easily accessible.

The vest's adjustment and fit capabilities are unparalleled, with two adjustable chest straps on 20 cm sliders for vertical and horizontal customisation, and double “S” elastic cross-lacing with auto lock for side adjustments on the fly. Additionally, three elastic compression cords with auto lock secure the top and bottom back pockets, ensuring your gear remains stable during your run. With both front and back pole solutions, you can carry your poles in a variety of configurations to suit your preference.

  • Ultimate Functionality: Provides extreme function, accessibility, and ergonomics for ultra-distance racing and training.
  • Optimal Storage: 10L volume with intelligently designed pockets for effortless access to hydration, nutrition, and essentials.
  • Lightweight and Compact: Weighs only 297g, ensuring minimal body contact and maximum breathability.
  • Custom Fit: Fully adjustable one-size-fits-all design with advanced elastic lacing and sternum straps for a perfect fit.
  • Versatile Hydration Options: Compatible with water bladders, bottles, and soft flasks, including optional Instinct Hydra Cell (600ml) soft flasks.
  • Comprehensive Storage Solutions: Multiple front and back pockets for organised and secure storage of all essential gear.
  • Enhanced Stability and Comfort: Unique design ensures remarkable stability, comfort, and freedom of movement.
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.