Inov-8 Racepac 4 Hydration Vest

• 4 litre capacity: Combines hydration, kit and nutrition storage in a small running vest.
• Side-adjustable fit: Adjustable side straps alter the width of the pack around the torso, allowing the one-size design to accommodate a broad range of chest and torso sizes.
• Front flask carry: Two stretch-mesh chest pockets accept 500ml Inov-8 soft flasks, with retaining bungees above. Flasks are not included.
• 2 litre reservoir compatible: The main rear compartment has a bladder hanger and can accommodate the Inov-8 2 Litre Hydration Bladder. Reservoir not included.
• Expandable rear compartment: A gusset allows the compartment to expand to accommodate a larger load and sit flatter when less is carried.
• Additional front storage: A large zipped pocket, large open-top front-to-side stretch pocket and smaller open-top stretch-mesh pocket supplement the two flask pockets.
• Secure front storage: The zipped pocket provides space for a large phone and valuables, with the emergency whistle located inside.
• Adjustable chest bungee: Stretch-bungee sternum adjustment allows the vest to be tightened or loosened while running.
• Front pole carry: Attachment points allow poles to be carried vertically on the front of the vest.
• Breathable construction: Air-mesh material helps move moisture away from the body.
• Recycled materials: The main materials contain recycled content.
• Reflective detailing: Reflective print on the rear adds visibility in low light.

The Racepac 4 uses a one-size, side-adjustable construction rather than a wraparound vest fit. Adjustable straps at each side alter the width of the pack around the torso, allowing it to accommodate a broad range of chest and torso sizes. A stretch-bungee sternum strap provides further adjustment across the front.

For help comparing the Racepac models, see our Inov-8 pack guide. The Racepac 8 doubles the total capacity to 8 litres and uses a three-size fit, waist adjustment and rear horizontal pole carry, so the choice is about more than capacity alone.

For advice on capacity, hydration systems, fit and other differences between running packs, see our Running Backpacks, Race Vests & Hydration Packs Guide.

If you are unsure whether 4 litres provides enough room for your mandatory kit, hydration and nutrition between aid points, get in touch for straightforward advice.