The USWE Moto Hydro 4L is a lightweight enduro backpack geared up with a small extra organizer compartment perfect for your favorite multi-tool, first-aid kit and extra snacks, or anything else you might want to bring with you. Stripped of any extras, the Moto Hydro 4 is the perfect lightweight companion on any long-distance racing. The shoulder straps and back panel are well ventilated, to improve the airflow and reduce weight.