Simms West Fork Jacket

Simms West Fork Jacket

Utilizing PrimaLoft® Cross Core Gold insulation, the Simms West Fork is the warmest jacket Simms offers.

The West Fork Jacket is the warm, willing-and-able answer to those cold, windy days on the water. Low-bulk PrimaLoft® Cross Core Gold insulation is featured fuller through the torso for maximized thermal performance and streamlined through the sleeves for amplified mobility. Essential storage comes in the form of zippered hand and chest pockets. Shingled elastic bound cuffs and the jacket’s Pertex® Quantum Pro upper shun wet elements.


  • Pertex® Quantum Pro with PrimaLoft® Cross Core Gold insulation
  • Toray stitchless material with PrimaLoft® Cross Core Gold blowable insulation
  • 3 point adjustable storm hood
  • Shingled cuff to keep elements out
  • Zippered chest and hand pocket
  • Adjustable hem

Fabric and Tech

Upper: Shell - Pertex® Quantum Pro 100% Nylon, Insulation- PrimaLoft® Crosscore Gold staple insulation, 170 GSM

Lower: Shell - Toray® 100% Polyester Pre-Quilted 30d down tube with C6 DWR, Insulation - PrimaLoft® Cross Core Gold blown insulation, 185 GSM fill rate