UTC 140 denier has long been one of the 'standard' threads for fly tiers around the world. Unlike Uni or standard Veevus threads, UTC is a floss, allowing the tier to tie with it 'flat' yielding very slim and smooth bodies or (by spinning the bobbin) the tier can tie with it 'round', making it stronger but less smooth. This versatility, along with their expansive array of unique and vibrant colors, has long made tiers choose UTC as their preferred thread.
