A modern take on the traditional bushwalking jacket to suit today’s ultralight user. The Highplains Jacket is an ultralight (MD only 340g!), waterproof, windproof, breathable bushwalking or travel rain shell.

By combining an ultralight 3-layer waterproof fabric with Mont’s beloved thigh-length fit, the Highplains Jacket provides comprehensive protection at a fraction of the weight of a traditional 3/4 jacket.

Hydronaute Ultra provides and maintains consistent breathable, waterproof, windproof protection across a wide range of conditions.

Hydronaute Ultra uses an innovative ultralight microporous laminated PU (Polyurethane) membrane. Breathable through interconnected micropores far smaller in size and greater in number than the micropores in traditional microporous PU coatings, Hydronaute Ultra moves moisture vapour and condensed moisture efficiently in both high and low level humidity.

Hydronaute Ultra is more breathable across a wider range of conditions while maintaining a totally waterproof, windproof exterior.

Look after your gear so it can look after you. Hydronaute Ultra is an ultralight 3 layer material and as such has a lower resistance to wear and tear. It is not recommended for use with heavy packs.

  • Made from lightweight, ultra breathable and waterproof Hydronaute Ultra 3 layer fabric
  • YKK AquaGuard front zip with laminated under zip flap for ultimate moisture protection
  • Laminated waist and hood draw-cords
  • Waist-cord adjustment tucks neatly into lower hand warmer pockets
  • Three piece hood with wired visor and multiple adjustment points
  • Articulated elbows for a great fit and unhindered movement
  • Long style for maximum coverage
  • Hook and loop adjustable cuffs ensure a reliable seal
  • Discreet external chest pocket with water resistant YKK AquaGuard zip
  • Two waist height hand-warmer pockets with water resistant YKK AquaGuard zippers
  • Sewn with Hydrophobic Epic thread
  • Seam sealed throughout


  • Fabric: Hydronaute Ultra ultralight waterproof windproof breathable
  • Zips: YKK AquaGuard

Weight: 340g (medium)