# Opsin USA - **Website:** - **Primary alias:** `opsin-usa.myshopify.com` ## Description Opsin USA is an angling brand focused on high-performance fluorocarbon fishing line, developed by U.S. anglers and made in Japan. Its slow-extruded fluorocarbon leader is designed to deliver dependable performance when fish are wary and conditions are demanding. Customers highlight its knot strength, flexibility, and usefulness for getting bites from line-shy fish. Opsin offers leader line across a broad range of strengths, organized for different fishing situations: freshwater and inshore fishing from 4 to 20 lb, offshore fishing from 25 to 80 lb, and big-game applications from 100 to 300 lb. These lines are suited to species and settings including bass, trout, surf fishing, bluefin tuna, yellowtail, dorado, and daytime swordfish. Products are available individually in various pound tests, alongside a multi-line pack featuring 25, 30, 35, and 50 lb options. The brand sells through its online shop and shares fishing reports, field notes, product updates, and customer reviews. Opsin also offers email updates, shipping, secure payment options, and returns, with customer support available by phone and email. ## Industries - 🏈 Sports - 🏈 Fishing _(under Sports)_ - 🎸 Hobbies and Leisure - 🎸 Camping Scouting and Outdoors _(under Hobbies and Leisure)_ ## Links - [facebook](https://facebook.com/OpsinUSA) - [instagram](https://instagram.com/opsin_fluorocarbon) ## Logos & icons - logo _(primary)_ — PNG — [download](https://cdn.brandfetch.io/idGHpQ7kvU/w/420/h/108/theme/dark/logo.png?c=1bxid64Mup7aczewSAYMX&t=1793984302525) - icon _(primary)_ — JPEG — [download](https://cdn.brandfetch.io/idGHpQ7kvU/w/960/h/958/theme/dark/icon.jpeg?c=1bxid64Mup7aczewSAYMX&t=1793984302934) ## Colors | Name | Hex | Theme | | --- | --- | --- | | Black | #000000 | accent | | Cod Gray | #0d0d0d | dark | | Athens Gray | #dfe3e8 | light | ## Fonts - Montserrat — asset _(google)_ - Roboto — asset _(google)_ - Montserrat — asset _(google)_ --- _Source: _ _See [/llms.txt](/llms.txt) for a full list of agent-readable pages, and [/auth.md](/auth.md) for how agents authenticate._