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For years, SA Mastery Series threads have been among our most popular and best performing. While some things have changed, one thing has remained the same: Mastery Series threads still deliver the same, if not better, performance as always.

Thanks to our AST Slickness additive, Dry-Tip technology, color change at the back of the head and the SAID identification system, Mastery threads are still the best smooth threads on the market in their price range.

From dry fly purists to tarpon anglers, SA’s Mastery Series gives every angler the lines they need to catch the fish they want.