Definition of "armband"

A sell-out crowd of 10,000 then observed perfectly a period of silence before the team revealed their black armbands, complete with stitched-in poppies, for the match. After Fifa’s about-turn, it must have been a frantic few days for the England kit manufacturer. The on-field challenge was altogether more straightforward.

2011 November 10, Jeremy Wilson, “England Under 21 5 Iceland Under 21 0: match report”, in Telegraph‎

The biggest cheer of the night came shortly afterwards. St James’ Park finally found its voice to welcome back Jonás Gutiérrez into a Newcastle side for the first time since his diagnosis with testicular cancer 17 months ago. Hugged by his friend Coloccini, Gutiérrez was handed the captain’s armband after replacing Ryan Taylor at left-back and promptly collected a booking for fouling Adnan Januzaj – on for a frustrated Angel Di Maria.

2015 March 4, Louise Taylor, The Guardian‎