Simms G4 Pro Rain Jacket — GORE-TEX PRO Storm Armor Built for Hardcore Days on the Water
When the forecast turns brutal and the river demands your full attention, the Simms G4 Pro® Rain Jacket is the hard-charging shell built to stay in the fight. Designed as Simms’ highest-tech wading jacket, the updated G4 Pro brings a 3-layer GORE-TEX® Pro build to deliver rugged, waterproof-breathable protection for serious anglers—whether you’re grinding it out on foot, running a drift boat, or posting up on a windswept shoreline.
This is premium fly fishing rain gear engineered for long days in heavy weather, with a purpose-built feature set that keeps essentials organized, keeps your hands warm, and keeps water out—without sacrificing mobility.
Best Use
All-day wading in sustained rain — ideal for steelhead, trout, salmon, and late-season river fishing
Boat fishing in heavy spray and wind — built for open-water runs, big weather, and long drifts
Guides and hardcore anglers who need a durable, feature-rich shell that stays breathable while moving
GORE-TEX Pro Weather Armor
At the core is Nylon 3-layer GORE-TEX® PRO, a proven standard for high-output, all-day protection. It’s built to shed driving rain, block wind, and breathe when you’re hiking to a run, rowing hard, or moving from spot to spot. If you’re looking for a durable wading jacket that performs in real storms, this is it.
Built for Wading, Boats, and Everything in Between
Every detail is tuned for fishing efficiency—fast access, smart storage, and the ability to keep your layering system dialed without stopping your momentum.
Why Anglers Choose the G4 Pro
GORE-TEX® PRO 3-Layer Protection: Rugged, fully waterproof and breathable performance designed for harsh, wet conditions.
3-Point Adjustable Storm Hood: Dial in coverage and visibility with a secure fit and a high-visibility center panel for low-light days.
Smart Fishing Storage System: Dual zippered chest pockets with interior stretch-mesh dividers organize fly boxes and essentials without bulk.
Stowable Fly Patch Tool: Integrated into the front seam for fast fly changes and quick access to tools on the water.
Handwarmer Pockets + Wader Access: Zippered side-entry pockets include an integrated pass-through zipper to reach wader pockets without removing your jacket.
Secure Internal Storage: Internal stretch-woven zip pocket keeps valuables protected and close.
Low-Profile Adjustments: Clean, functional adjustable cuffs and hem help seal out driving rain and wind.
Fabric & Build
Shell: Nylon
Membrane:3-layer GORE-TEX® PRO Technology
Performance: Waterproof / windproof / breathable, built for rugged fishing use
