Unfortunately I carry one due to a bee allergy. I wish I could ride bagless, but the addition of the EpiPen makes this a little more difficult. I generally always wear a Camelback because of this to hold the water, tools, and EpiPen. I have tried to go bagless by using a combination of DaKine gripper and a small toptube/ stem bag for phone and gear, but it couldn’t really handle everything. I ended up returning them both