Le'aokuu Men Fashion Casual Tea Designer Travel Hiking Crossbody Chest Sling Bag Rig One Shoulder Strap Bag Men Leather 8015 | Fashion

Really, all you need is a cross-body bag of the kind you can keep on your front (chest or belly) in crowded situations. I got this one and it worked perfectly: https://www.amazon.com/Leaokuu-Fashion-Designer-Crossbody-Shoulder/dp/B07V2QHLFH