A belly band uses perhaps fifteen percent of the material of a full sleeve, which makes it the lowest-cost way to add printed branding to an otherwise plain product. It is also the fastest to change — a new band for a new season costs almost nothing and needs no retooling.

It does more work than branding alone. A band holds a set together (cutlery, a book and notebook, a two-bottle gift), acts as a light tamper indicator, and carries regulatory or ingredient copy that you do not want printed permanently on the primary pack. Many buyers order bands specifically to avoid reprinting a compliant carton every time a claim changes.