Here is a replacement shoulder bag used for leaf blowers/vacuums. The shoulder bag makes it easy for users to have a place to quickly and easily collect all of the leaves and other debris that has been sucked up by the vacuum. When the bag is full, the user can simply remove it from their shoulder and empty it into the appropriate bin. It makes it easier to clean up the yard and can eliminate the need for raking. While these types of bags seem durable, they can start to wear down over time. Whether the shoulder strap is breaking or there are holes in the bag, it's best to replace it sooner rather than later. Otherwise, it could break while it is being used, which would cause a mess. There is no real replacement procedure since this is just a shoulder bag that is used in conjunction with the blower/vacuum. The shoulder bag is a genuine OEM replacement, which is sold individually and is compatible with leaf blowers/vacuums from Black & Decker and DeWalt.