I bought the smaller sling bag, and honestly I just keep everything i need on it to go on with my day. It’s mentioned that it’s waterproof but no one mentions that the material, being hydrophobic also does not collect dust and grime, so the colors are always popping. The rope sling is quite comfortable and easily adjustable, and the bag itself really packs a lot without deforming. I leave the house with: my keys, a swiss army knife, disinfectant, airpods, my wallet, a small notebook, a pen, a phone charger, sunglasses, phone, a pack of chewing gum and pocket change, and it feels like everything fits every pocket and i still have the main pocket loose for anything i need to fit inside. I keep my keys on the hook, and the small strap is really useful for opening my door without taking the keys out - a real mind saver, since I know that if I leave the house with the bag, my keys are always with me. As for larger objects, a kindle paperwhite 11 fits inside the main pocket (though quite tightly). The combination of good materials, aesthetics, and well though-out organization really made this the perfect sling bag for me!