The Steel Bonnets (London: Barrie & Jenkins) is a 1971 historical non-fiction book by George MacDonald Fraser about the Border Reivers.
[1][2] Fraser researched the book with his wife.
[3] It concentrates mainly on the 16th century, and seeks to de-glamourise the period in some ways.
[4] The Daily Telegraph called it "a vigorous and valuable book.
"[5]