St. Croix EVOS Fly Rod

Part Number: EVOS


St. Croix EVOS Fly Rods

St. Croix Evos challenges the status quo of traditional fly rod design and sets the bar for multi-technique performance. Powered by a next-level carbon fiber matrix and exclusive MITO® Graphene technology, Evos’ refined actions are exceptionally responsive through a wide range of casting distances, insanely accurate, and provide the perfect marriage of punch and precision. Fast enough to deliver infinite lifting capability, mesmerizing loop stability, and maximum line speed for challenging conditions, Evos balances speed and power with intimate feel and feedback ideal for technical situations that demand perfect presentation.

Technology Group


  • Advanced materials matrix consisting of ultra-high-modulus/high-strain SCVI carbon, high-modulus SCIV carbon, and premium-quality SCII carbon
  • Mito Graphene unlocks the power of hybrid polymer materials and delivers radical hoop strength, optimized loop stability, and absolute accuracy
  • Integrated Poly Curve (IPC) mandrel tooling provides improved energy transfer, increased strength, and mega-efficient rod recovery
  • Advanced Reinforcing Technology (ART) adds a magnitude of 10X strength with virtually no increase in blank diameter or weight
  • Fortified Resin System (FRS) boosts blank strength by 33% over standard resins and curing methods
  • Reinforced Slim Profile Ferrule (SPF) design adds herculean strength with minimal added weight


  • Recoil single-foot guides [#4wt. - #6wt.]
  • Recoil snake guides [#7wt. - #8wt.]
  • Cerecoil stripper guides
  • Hook-keeper
  • Modified micro full wells flor-grade cork handle [#4wt. - #6wt.]
  • Modified full wells flor-grade cork handle [#7wt. - #8wt.]
  • Uplocking, machined-aluminum reel seat with walnut insert [#4wt. - #5wt.]
  • Uplocking, machined-aluminum reel seat [#6wt. - #8wt.]
  • Micro fighting butt with composite end cap [#4wt. - #6wt.]
  • Fighting butt with composite end cap [#7wt. - #8wt.]
  • Aluminum rod tube with rod sock
  • 15-year transferable warranty
  • Designed and precision crafted in Park Falls, WI.

Exclusive MITO Graphene Technology

Graphene is a single-atom-thick honeycomb layer of carbon, harder than diamond, yet more elastic than rubber. In fact, it’s the strongest and stiffest material known to man. St. Croix had an eye on graphene for a while, but until recently, available graphene products applicable to rod building failed to deliver the consistency and control they demand.

Through an exclusive relationship with MITO Material Solutions, St. Croix is the only rod manufacturer leveraging MITO technology and applying the first and only verified functionalized graphene product to its rod-building materials in-house. “Functionalized” means that MITO’s graphene product fits within St. Croix's existing manufacturing processes, and that they're in full control of the material’s application. MITO functionalized graphene is fiber-agnostic, meaning it’s compatible with any carbon or composite material they want to use – a critical consideration, as most of St. Croix rod-blank designs contain multiple materials. MITO’s formula also ensures graphene concentrations in the functionalized product are homogenous – much more evenly dispersed than in commercially available graphene nano resins. This means they're able to apply a total weight loading of actual graphene material at accuracies within .01%.

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