The textile cover is part of the Sebo Airbelt system.  This soft touch material covers the foam bumper to provide additional protection and durability.  Available in a solid charcoal color along with a clip to secure the cover to the vacuum's body.   

Inspect the textile cover every 3-4 years or whenever you notice the cover is worn, torn or discolored. For best performance and maintenance inspect the foam bumper whenever changing the textile cover.