The endura back pack 25l is a cycling specific backpack useful for carrying any essentials or extra layers you may need the padded back system has been designed for optimum airflow and ventilation to prevent your back from overheating the chest and hip straps help to distribute the weight of your gear to reduce the stress on your shoulders the chest strap can be easily attached with one hand for ease of use and both straps feature zipped mesh pockets which you can use to store anything you r