Answer:
It is a common and favored clothing material among biker gangs and superheroes.
Maritime marauders
Nothing specific, but more than a few. This many clustered, together will do.
What has fingers and a thumb but no hand?
In a year, there are 12 months. Seven months have 31 days. How many months have 28 days?
Dark, feathery, and popular in Baltimore and fantasy books.