fishskin

[fish-skin]

noun Slang.

Origin of fishskin

1645–55, for literal sense; fish + skin

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

If you had worn a boy's coat, or a fishskin, always, I had sense enough to see that it was a saint at play.
The Mermaid
Lily Dougall
In summer their clothing is of sealskin and fishskin; and in winter it is of the thicker reindeer hides.
A Treasury of Eskimo Tales
Clara Kern Bayliss