{"product_id":"scientific-anglers-sonar-stillwater-seamless-density","title":"Scientific Anglers Sonar Stillwater Seamless Density","description":"\u003ch2 class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eDial In the Depth. Stay Connected to the Fly.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eScientific Anglers Sonar Stillwater Seamless Density\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a new-for-2026 family of blended-density sinking lines built specifically for stillwater trout. Instead of an abrupt transition between sinking sections, Seamless Density technology creates a smooth change in density that eliminates hinging and maintains a straighter connection to the fly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eChoose from three density combinations—\u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eSink 1\/3, Sink 3\/5, or Sink 5\/7\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e—to target different levels of the water column. Each combination pairs a slower-sinking section with a faster-sinking head, giving you a predictable way to get flies down and keep them working at the depth where trout are feeding.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe lines feature a long 45-foot head and are overweighted by two line weights, providing the mass needed to cast multiple flies, long leaders, and longer distances.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eWhy We Like It:\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eStillwater trout rarely stay at one depth all day. The Seamless Density system makes it easy to adjust your depth without changing the basic feel of the line. The blended-density construction keeps the line connected to the fly instead of creating the hinge effect that can occur between conventional sinking sections.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eThree Lines. Three Depth Ranges.\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eMatch Your Line to Where the Trout Are Feeding.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Seamless Density family gives stillwater anglers three distinct sinking profiles:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eSink 1\/3\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e — Intermediate running line with a Sink 3 head. Designed to get below surface chop and fish approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e6 feet deep\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eSink 3\/5\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e — Sink 3 running line with a Sink 5 head. Designed to search the middle of the water column at approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e12 feet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eSink 5\/7\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e — Sink 5 running line with a Sink 7 head. The fastest-sinking option, designed for working deeper water and dredging the bottom at approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e18 feet\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eActual fishing depth will vary depending on fly selection, retrieve speed, leader length, and conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eSeamless Density Technology\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eTraditional multi-density sinking lines can create a noticeable hinge where two different densities meet. Scientific Anglers' \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eSeamless Density\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e construction blends the densities together for a smoother transition.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThat creates a more direct connection from the rod to the fly, improving contact and helping anglers detect subtle takes while maintaining the intended sinking profile.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eNew for 2026\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDesigned specifically for stillwater trout\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAvailable in three blended-density configurations:\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eSink 1\/3\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eSink 3\/5\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eSink 5\/7\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSeamless Density technology provides smooth transitions between sinking rates\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEliminates hinging between density sections\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCreates a more direct connection to the fly\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003e45' head\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e for long casts and line control\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003e100' total length\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eOverweighted by \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003etwo line weights\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e for multiple flies, long leaders, and longer casts\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eTextured hang markers at 10' and 20'\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e from the tip\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eAST Plus\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e coating for superior shooting ability and increased durability\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSA Line ID for quick line identification\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWelded loops for easy leader and backing connections\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDesigned for freshwater trout fishing in cold and medium water temperatures\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSink 1\/3\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eSink 3\/5\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eSink 5\/7\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eLine Weight\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eHead Length\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eTotal Length\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eHead Weight\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eGrain Weight*\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e149228\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e149266\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e149303\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eWF-5-S\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e45.0'\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100.0'\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e280 gr\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e185 gr\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e149235\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e149273\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e149310\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eWF-6-S\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e45.0'\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100.0'\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e320 gr\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e210 gr\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e149242\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e149280\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e149327\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eWF-7-S\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e45.0'\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100.0'\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e365 gr\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e240 gr\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e149259\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e149297\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e149334\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eWF-8-S\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e45.0'\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100.0'\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e425 gr\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e280 gr\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e*Grain weight measured over the first 30 feet.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSink Rate Details\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eDensity\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eRunning Line\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eHead\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eIntended Fishing Depth**\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSink 1\/3\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIntermediate — 1.25 ips\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSink 3 — 3.0 ips\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApprox. 6'\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSink 3\/5\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSink 3 — 3.0 ips\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSink 5 — 5.0 ips\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApprox. 12'\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSink 5\/7\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSink 5 — 5.0 ips\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSink 7 — 7.0 ips\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApprox. 18'\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e**Approximate depths provided by Scientific Anglers; actual depth depends on flies, leader, retrieve, and conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eDensity:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Sink 1\/3, Sink 3\/5, Sink 5\/7\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eColors:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Charcoal\/Black, Dark Green\/Charcoal, Light Gray\/Dark Green\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eTechnology:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e AST Plus, Audible Reference Point, SA Line ID, Seamless Density, Shooting Texture, Sonar, Welded Loops\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eWater Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Freshwater\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eWater Temperature:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Cold, Medium\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eFishing Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Streamers, Nymphs\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eSpecies:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Trout\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eImportant Line Weight Information\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe Sonar Stillwater Seamless Density is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eoverweighted by two line weights\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Select the line weight designated for your rod rather than sizing down based on the actual grain weight.\u003c\/span\u003e\u003c\/p\u003e","brand":"Scientific Anglers","offers":[{"title":"5 wt. \/ Sink 1\/3","offer_id":64654869922163,"sku":"149228","price":99.95,"currency_code":"USD","in_stock":true},{"title":"6 wt. \/ Sink 1\/3","offer_id":64654869954931,"sku":"149235","price":99.95,"currency_code":"USD","in_stock":true},{"title":"7 wt. \/ Sink 1\/3","offer_id":64654869987699,"sku":"149242","price":99.95,"currency_code":"USD","in_stock":true},{"title":"8 wt. \/ Sink 1\/3","offer_id":64654870020467,"sku":"149259","price":99.95,"currency_code":"USD","in_stock":true},{"title":"5 wt. \/ Sink 3\/5","offer_id":64654870053235,"sku":"149266","price":99.95,"currency_code":"USD","in_stock":true},{"title":"6 wt. \/ Sink 3\/5","offer_id":64654870086003,"sku":"149273","price":99.95,"currency_code":"USD","in_stock":true},{"title":"7 wt. \/ Sink 3\/5","offer_id":64654870118771,"sku":"149280","price":99.95,"currency_code":"USD","in_stock":true},{"title":"8 wt. \/ Sink 3\/5","offer_id":64654870151539,"sku":"149297","price":99.95,"currency_code":"USD","in_stock":true},{"title":"5 wt. \/ Sink 5\/7","offer_id":64654870184307,"sku":"149303","price":99.95,"currency_code":"USD","in_stock":true},{"title":"6 wt. \/ Sink 5\/7","offer_id":64654870217075,"sku":"149310","price":99.95,"currency_code":"USD","in_stock":true},{"title":"7 wt. \/ Sink 5\/7","offer_id":64654870249843,"sku":"149327","price":99.95,"currency_code":"USD","in_stock":true},{"title":"8 wt. \/ Sink 5\/7","offer_id":64654870282611,"sku":"149334","price":99.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/2715\/6339\/files\/stillwater-seamless-density.jpg?v=1789595342","url":"https:\/\/gorgeflyshop.com\/products\/scientific-anglers-sonar-stillwater-seamless-density","provider":"Gorge Fly Shop","version":"1.0","type":"link"}