Upavon Chadwick's 477 Substitute
Upavon by name, Avon by nature. Born on the banks of the River Avon we have developed this Chadwick's 477 substitute as close as possible to the original material used by the legendary Frank Sawyer. Traditionally used to tie Sawyer's Killer Bug, this woollen yarn is equally effective on emergers and nymphs. The translucent buggy effect makes for an excellent natural looking material for nymphs, dries and emerger patterns.