The Inov-8 H2Orizontal Bladder system uses an anatomical design to provide additional lumbar support to specific Inov8 Race Pro packs.

Segmentation reduces water movement within the bladder. Low center of gravity gives you better stability.  Source components with anti-microbial technology significantly reduce bacteria growth on the tube and reservoir.

Capacity is up to 2 fluid liters with 1L and 1.5L markers if a lower amount of fluid is desired. A large opening allows easier access for filling and cleaning.

Z-valve bite valve features a high-flow and leakproof design. The integral spring mechanism allows exceptionally high flow rate and won't lose its seal after a few months of use. Dirt shield for bite valve included.