Zefal Z Hydro Enduro 3L Hydration Pack - Light Blue Brand_Trident It provides heart rate variability

It provides heart rate variability (HRV) with a compatible app

beyond the fact that it is fast

Spindle size B

so you can stay focused on crushing your PR

Zefal Z Hydro Enduro 3L Hydration Pack - Light Blue Brand_Trident It provides heart rate variabilityZ HYDRO ENDURO Hydration backpack with a large volume Made for long rides, The Z Hydro Enduro is a hydration bag that comes with a 3L water bladder. It is made from PEVA and is guaranteed to be BPA free. The large opening makes it quick and easy to clean. A ventral straps with two pockets, a pectoral straps and a foam reinforcement in the back allow the Z Hydro Enduro to be adapted to the shape of the rider. The Z Hydro Enduro has a large main pocket,