FUNCTIONAL HYDRATION Our 4 Liter Hydration Pack ensures total comfort during your runs. Designed for maximum breathability and enhanced storage, it features 2 water-resistant pockets and 2 kangaroo pockets, making it ideal for race day.

ESSENTIAL DESIGN Crafted with moisture-wicking tapered back panels and chafe-free fit, this pack is designed for comfort. The new side pocket offers easy access, while the new vertical pocket perfectly accommodates trekking poles. The 2 20oz hydration flasks, featuring an ExoSpine for stability and a long hose with a mouthpiece, provide reliable hydration.

SIZING & FIT Unisex and suitable for various body types, our hydration pack fits like a second skin. It is 20% lighter and more breathable than the Krar and Howe Vests. Women's specific sizing is also available, ensuring a perfect fit for all runners.

SPECIFICATIONS - Weight without bladder: 6.1oz - Weight with bladder: 12.0oz - Storage capacity: 4 Liters (244 cu in) - Comes with 2 20oz hydration soft flasks

INSPIRED BY THE JOURNEY Nathan's collection of running essentials focuses on intuitive design, comfort, quality, and smart storage, helping runners enhance and improve their performance, mile after mile and year after year.