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509 Tech Flannel

By 509

The 509 Tech flannel is part shirt, part jacket. All mountains, and all 509. Wrenching in the shop, or chopping wood for the Cabin Stove, the 509 Tech flannel is a notch above your basic flannel. Insulated with 100-gram insulation with a built in soft cotton hood.


  • 7oz brushed cotton flannel, prewashed before assembly for softness, and low shrinkage
  • Taffeta lined with 70-gram quilted insulation
  • Taslan shoulder for extra weather protection, and durability
  • Zippered chest pocket, with additional button flap pocket.
  • Fleece hood
  • Slash pockets at side seam