Hydration that won't slow you down.
Designed with the classic Italian craftsmanship that Alpinestars has come to be known for over the last half-century, the Sprint Bike Hydration Backpack has all of the features you'll need for a full day on the trails. As its name suggests, the bag has a separate compartment to accommodate an optional hydration bladder — add one to the bag to stay consistently hydrated on hot, sunny rides without having to depend on warm water bottles.
The backpack includes a waist belt and chest strap to balance weight and keep you comfortable when wearing it for multiple, saddle-bound hours, and Alpinestars even attached a whistle to the chest strap in case you need to intimidate unexpected wildlife blocking your path. When you're done for the day, carry your helmet home safely in a separate pack-away bag, and breathe a sigh of relief when you unpack the waterproof zipper-protected front pocket to see that your valuables are safe.