Deuter's Hydro Lite 3.0 offers 100 ounces of refreshment without weighty bells and whistles. Deuter's breathable Airstripes carrying system enhances airflow for all-conditions comfort and holds tight for stability when things get extreme. Plus, the storage compartment is big enough to hold a spare tube, energy bar and other essentials. And, this pack's taillight mount and reflective panels help you stay safe after dark, too.