Need some space? How about 23 liters of storage? Or maybe you need even more when the time calls. Just unzip this carrier's top for an extra six-and-a-half liters of bag. The roll top bag expands when you need it to, featuring necessities like a padded laptop sleeve, hidden front and side zippers for direct main bag access, and four interior mesh pockets. It's all water-repellant and scratch-resistant with an air mesh back panel for comfortable carrying. The interior liner is even treated with a custom Polygiene for permanent odor control, making this bag perfect for the gym, as a work bag, and even for weekend overnights.