{"product_id":"troutline-catgut-biothread","title":"Troutline Catgut Biothread","description":"\u003cp\u003eWe’re excited to offer you\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eone of the best fly tying materials\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor creating lifelike nymphs:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCatgut Biothread\u003c\/strong\u003e. This exceptional material is known for its unique transformation from opaque when dry to milky translucent once wet. Its natural stiffness can make it slightly challenging to work with when dry, so we recommend wetting it before use.\u003c\/p\u003e\n\u003cp\u003eTo prepare it, simply soak the material in warm water for 3-5 minutes—only the portion you intend to use. The color will shift from opaque to a beautiful milky transparency, enhancing its natural effect.\u003c\/p\u003e\n\u003cp\u003eWhen multiple threads of different colors are used, your nymphs will have subtle shading in the underbody, creating a stunning depth of color.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCatgut Biothread\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis truly a magical material, perfect for crafting durable and realistic bodies for nymphs and emergers. Its versatility and texture make it a must-have for any serious fly tier.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eCatgut Info and Details:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: Approx. 50 cm per bag\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize L\u003c\/strong\u003e: For hooks #6 and #10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize M\u003c\/strong\u003e: For hooks #10 and #12\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize S\u003c\/strong\u003e: For hooks #14 and #16\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize XS\u003c\/strong\u003e: For hooks #16 and #22\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eL\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= 0.7mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eM\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= 0.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= 0.3mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eXS\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= 0.18mm\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSpecially treated for long-lasting durability in water\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Troutline","offers":[{"title":"Brown \/ Small","offer_id":57054706762101,"sku":"UV0318","price":1.8,"currency_code":"GBP","in_stock":true},{"title":"Brown \/ Medium","offer_id":57054708171125,"sku":"UV0319","price":1.8,"currency_code":"GBP","in_stock":true},{"title":"Brown \/ Large","offer_id":57054708203893,"sku":"UV0320","price":1.8,"currency_code":"GBP","in_stock":true},{"title":"Caddis \/ Small","offer_id":57054706794869,"sku":"UV0321","price":1.8,"currency_code":"GBP","in_stock":true},{"title":"Caddis \/ Medium","offer_id":57054708236661,"sku":"UV0322","price":1.8,"currency_code":"GBP","in_stock":true},{"title":"Caddis \/ Large","offer_id":57054708269429,"sku":null,"price":1.8,"currency_code":"GBP","in_stock":false},{"title":"Natural \/ Small","offer_id":57054706827637,"sku":"UV0323","price":1.8,"currency_code":"GBP","in_stock":true},{"title":"Natural \/ Medium","offer_id":57054708302197,"sku":"UV0324","price":1.8,"currency_code":"GBP","in_stock":true},{"title":"Natural \/ Large","offer_id":57054708334965,"sku":null,"price":1.8,"currency_code":"GBP","in_stock":false},{"title":"Olive \/ Small","offer_id":57054706860405,"sku":"UV0325","price":1.8,"currency_code":"GBP","in_stock":true},{"title":"Olive \/ Medium","offer_id":57054708367733,"sku":"UV0326","price":1.8,"currency_code":"GBP","in_stock":true},{"title":"Olive \/ Large","offer_id":57054708400501,"sku":null,"price":1.8,"currency_code":"GBP","in_stock":false},{"title":"Yellow \/ Small","offer_id":57054706991477,"sku":"UV0327","price":1.8,"currency_code":"GBP","in_stock":true},{"title":"Yellow \/ Medium","offer_id":57054708433269,"sku":"UV0328","price":1.8,"currency_code":"GBP","in_stock":true},{"title":"Yellow \/ Large","offer_id":57054708466037,"sku":null,"price":1.8,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4866\/7572\/files\/troutline-catgut-biothread-size-xs-troutline_shop_1.jpg?v=1775755960","url":"https:\/\/www.upavonflyfishing.co.uk\/es\/products\/troutline-catgut-biothread","provider":"Upavon Fly Fishing","version":"1.0","type":"link"}