Semperfli Chadwick 477
This new '477' has been specially developed in Scotland to replicate as close as possible to the classic Sawyer Bug tying wool. Originally Sawyer used Chadwick's 477 and as perfectionists found other substitutes simply did not match the original material for colour. The Semperfli team actually got a factory to spin some Chadwick's 477 substitute especially! To perfectly replicate the original Killer Bug simply split the 477 Substitute from 3 ply to one and it matches even the diameter of the original 477.
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