sleeveband
/ˈslɛvbeɪnd/ or /ˈslivbænd/Definitions
1. noun
The part of a garment, such as a shirt or jacket, that covers the sleeve.
“The designer added a decorative sleeveband to the new collection.”
2. noun
A strip of fabric used to reinforce or protect the seam of a sleeve.
“The seamstress carefully applied a sleeveband to the damaged sleeve.”