If you are planning to purchase a large vinyl banner to hang outdoors you may consider using wind slots. These are half circle slots cut directly into the banner to allow wind to pass through. Be warned though we cut wind slots directly into the imprint of the vinyl banner meaning it may make certain pieces of text hard to read. Wind slots can significantly increase the durability of your vinyl banner if you are going to have it exposed to wind. Situations where you might consider wind slots is when the banner is not up against a building or wall. If it is free standing on poles in the open it is common to need wind slots. Before the advent of spring loaded pole mounts it was often common for avenue banners to have wind slots also.