Using this Basil Bohème City Bag is a breeze. If you're cycling, attach it to your bike using the appropriate setup. When you want to carry it on your shoulder, simply detach the strap and put it over your shoulder. Make sure to keep your items organized inside the bag to make the most of the 8 - litre capacity. When it comes to maintenance, wipe the water - resistant fabric with a damp cloth if it gets dirty. Avoid exposing it to sharp objects that could damage the fabric or the stitching. Also, remember that the handlebar holder is sold separately, so you'll need to purchase it if you want to use the bag on your bike's handlebar.