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All (81)
12/0 (11)
170Den (4)
8/0 (2)
18/0 (1)
18/0 (15)
3/0 (15)
Pure Silk 3/0 (12)
  • Sold out
    Dry Fly Polyyarn Grayling Collection - 10 Spools
    Out of stock

    Semperfli

    Dry Fly Polyyarn Grayling Bugs Collection

    Dry Fly Polyyarn Grayling Collection - 10 Spools 10 stunning spools of our polyyarn in deadly colours specifically for grayling dry flies and bugs to attract the Lady of the Stream. Polyyarn has been nicknamed by fly tyers world wide the 'floating yarn'...

    £35.00
    Out of stock
  • Sold out
    Dry Fly Polyyarn Caddis Collection
    Out of stock

    Semperfli

    Dry Fly Polyyarn Caddis Collection

    Dry Fly Polyyarn Caddis Collection - 10 Spools 10 stunning spools of our polyyarn in deadly caddis fly colours. Polyyarn has been nicknamed by fly tyers world wide the 'floating yarn'. It is so fibrous and so beautifully buggy, this easy to use fly tying...

    £35.00
    Out of stock
  • Classic Waxed Thread 12/0 (All Colours)
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    Semperfli

    Classic Waxed Thread 12/0 (All Colours)

    Semperfli Classic Waxed Thread 12/0 (All Colours) Using similar techniques as with Nnao Silk we extruded thin Polyester strands which were then slightly twisted and had a light amount of wax added to them. The amount of wax added has been specifically...

    £2.99
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  • Sold out
    Semperfli Pure Silk Black Traditional fly patterns such as spiders or Clyde style.
    Out of stock

    Semperfli

    Pure Silk Black

    Semperfli Fly Tying Pure Silk Black Pure Silk #9 is a twisted pure silk, popular for traditional fly patterns such as spiders or Clyde style. If you are wanting to use Pure Silk #9 flat simply untwist it by spinning on your bobbin holder. This dual...

    £3.40
    Out of stock
  • Semperfli Nano Silk Pro 20D Semperfli Nano Silk Pro 20D
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    Semperfli

    Semperfli Nano Silk Pro 20D (All Colours)

    Nano Silk Pro 20D  Nano Silk is the best GSP thread on the market – period! Super strong, this is the highest quality thread available. Never worry about snapping your tying thread again – you can rely on Nano Silk. Nano Silk Pro 20D is...

    £5.50
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  • Semprfli Nano Silk 30D 18/0 Nano Silk is regarded as the tying thread choice of professional
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    Semperfli

    Semperfli Nano Silk 30D 18/0 (All Colours)

    Nano Silk Ultra 30D 18/0  Nano Silk Ultra 30D 18/0 is regarded as the tying thread of choice of professional fly tyers worldwide and is the best GSP thread on the market! Being so super strong and available in such a variety of colors and deniers it...

    £3.99 - £18.00
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  • Semperfli Nano Silk 100D 6/0 (All Colours) Semperfli Nano Silk 100D 6/0 (All Colours)
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    Semperfli

    Semperfli Nano Silk 100D 6/0 (All Colours)

    Semperfli Nano Silk 100 Denier Predator 6/0   Nano Silk 100 Denier Predator 6/0 is ideal for your salmon, predator, saltwater, streamer, nymph and dry flies and is ideal for spinning deer hair. Super strong, this is the highest quality thread...

    £3.25 - £5.85
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  • semperfli Nano Silk the best Gsp Thread on the market semperfli Nano Silk
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    Semperfli

    Semperfli Nano Silk 200D 3/0 (All Colours)

    Nano Silk 200 Denier 3/0 Big Game Nano Silk 200 Denier 3/0 Big Gameis ideal for your salmon, predator, saltwater, streamer, nymph and dry flies and is ideal for spinning deer hair. Super strong, this is the highest quality thread available. Never worry...

    £2.99
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  • Dirty Bug Yarn (All Colours) Dirty Bug Yarn (All Colours)
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    Semperfli

    Dirty Bug Yarn (All Colours)

    Semperfli Dirty Bug Yarn  Specially designed with a mix of natural and synthetic materials Dirty Bug Yarn was designed resulting from research of different dubbings when it was realised that many traditional dubbings were often ‘single...

    £3.75
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  • Micro Glint Nymph Tinsel comes as part of a range of iridescent and solid color Micro Glints Notice the unique sparkling finish where Micro Glint Nymph Tinsel  refracts the light. Micro Glint Nymph Tinsel  is 275 denier Micro Glint
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    Semperfli

    Micro Glint

    Semperfli Micro Glint Nymph Tinsel  is a fine multi-strand iridescent and metallic thread with a unique sparkling finish. Micro Glint Nymph Tinsel can be used for tying complete buzzers or ribbing small nymphs and dry flies or as shucks. Micro Glint...

    £2.85
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  • Semperfli Perdigon Body Iridescents
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    Semperfli

    Perdigon Body Iridescent Colour

    Semperfli Perdigon Body Iridescents   Perdigon Body Iridescent is a game-changer born from the ingenuity of the Spanish competition team and now embraced by fly tyers and anglers globally. The Perdigon fly, renowned for its ease of tying and rapid...

    £3.99
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  • Cheeky UV (ALL COLOURS)
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    Semperfli

    Cheeky UV (ALL COLOURS)

    Semperfli Cheeky UV Cheeky UV is a product we were asked to design by a top competition angler who wanted holographic cheeks on a thin film for buzzers / chironomids. Cheeky UV is a ultra thin UV film that glows extremely vibrantly under UV torches or...

    £3.50
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  • Semperfli Fluoro Brite Golden Orange Semperfli Fluoro Brite Golden Orange
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    Semperfli

    Fluoro Brite Golden Orange

    Semperfli Fluoro Brite Golden Orange Born to be different, Fluoro Brite is your versatile fly tying companion. Use it as a tying thread or effortlessly untwist it to transform into a vibrant floss. What sets Fluoro Brite apart is its extraordinary...

    £1.50
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  • Semperfli Nano Silk 50D 12/0 Black 100m Spools
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    Semperfli

    Nano Silk 50D 12/0 Black 100m

    Semperfli Nano Silk 50D 12/0 Black   Semperfli Nano Silk 50D 12/0 Black is regarded as the tying thread of choice of professional fly tyers worldwide and is the best GSP thread on the market! Being so super strong and available in such a variety of...

    £3.75
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  • Semperfli Nano Silk 50D 12/0 White 100m Spools
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    Semperfli

    Nano Silk 50D 12/0 White

    Semperfli Nano Silk 50D 12/0 White 100m Spools Nano Silk 50D 12/0 White is regarded as the tying thread of choice of professional fly tyers worldwide and is the best GSP thread on the market! Being so super strong and available in such a variety of...

    £3.75
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Nylon Thread:

Polyester Thread:

Nylon threads are strong, stretchy, and available in a wide range of colors and sizes. They often have a smooth finish and can lay flat or be twisted. Uses: Ideal for general-purpose tying, securing materials, and building bodies. Nylon threads are versatile and suitable for both small and large flies.

Polyester threads are known for their durability and resistance to UV light. They tend to be slightly stiffer than nylon. Uses: Often used for tying saltwater flies and large streamers where durability is crucial. Also suitable for flies exposed to harsh conditions.

GSP (Gel-Spun Polyethylene) Thread:

Silk Thread:

GSP threads are ultra-strong, thin, and have little to no stretch. They offer high tensile strength for their size. Uses: Ideal for tying very small flies where strength is needed without adding bulk. Commonly used for tying fine, delicate patterns, and large, durable flies.

Traditional and natural, silk threads have a smooth, glossy finish. They come in a variety of colors and are prized for their sheen. Uses: Popular in classic and traditional fly patterns, especially for dry flies. Silk threads provide a natural look and are used in heritage fly tying.

    Thread Sizes

  • ➤ 3/0: Very thick, used for large flies, bass bugs, and saltwater patterns.
  • ➤ 6/0: Medium thickness, suitable for most general-purpose tying, including larger nymphs and streamers.
  • ➤ 8/0: Fine thread, used for smaller flies, dry flies, and nymphs.
  • ➤ 12/0: Very fine, ideal for tiny flies and delicate patterns.
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