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Product Highlights
Features a comfortable, significant stretch
Constructed with generous cut that allows layering
Assembled with zip-through, stand-up collar
Constructed with a chest pocket and two hand warmer pockets
Features a shock cord adjustment at waist for extensive breathability

Sun Mountain Isotherm Jacket (2019 Version)

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Product Information

Sun Mountain Isotherm Jacket (2019 Version)

Sun Mountain Isotherm Jacket (2019 Version)

The Isotherm is a multi-functional, lightweight jacket. The front panels are lined to cut the wind where it counts and the shell fabric stretches across the back and arms for freedom of movement. For 2019, we refined the cut, changed to an E-Z zip Vislon center zipper and added pocket zippers.


  • New E-Z Zip Vislon center front zipper
  • Significant stretch
  • Generous cut allows layering
  • Zip-through, stand-up collar
  • Chest pocket and two hand warmer pockets


  • STRETCHABLE - Outerwear constructed to move with your body.
  • BREATHABLE - Outerwear that allows moisture vapor to be transmitted through its fabric layers.
  • THERMAL - Designed to keep your core warm.
  • ADVANCED DWR - Our Durable Water Repellant coating causes rain to bead up and run off.


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