When all you need is to stay light and hydrated, this is what you need. Our MTb Enduro Race 1.5 backpack allows you to carry up to 3.5 liters of water in two separate bladders.The standard 1.5-liter horizontal bladder is included, but you can also add a 2-liter vertical bladder and position it on the other shoulder for maximum hydration during a long race day! The reflective thermal back panel will keep it cool, so you can stay cool under the scorching sun.Our exclusive chest harness and shoulder strap adjustment system provides a solid, bounce-free fit without a waist belt!If you want to stay light and agile during a race, this is the backpack for you!