Mont Ossa Hydronaute XT Womens

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Womens Ossa Hydronaute XT 


Totally redesigned and newly released - the tapered rectangular sleeping bags are warmer and lighter than ever before. Featuring the Radial Arc Baffle System these bags set a new benchmark in sleeping bag technology. The versatility of the Mont Tapered Rectangular sleeping bags will make them a favourite with bushwalkers and ski tourers. They can be used over a wide range of temperatures by regulating the ventilation with foot and side zippers and adjusting the distribution of down between canopy and base. The semi rectangular shape also makes them ideal for those who like a little more room to move when they sleep. The Ossa is the women’s version of the Brindabella and is very popular due to its superb versatility and wide range of uses, keeping you comfortable in temperatures as low as -10C.




  • Filled with 700 gms of highly water resistant DWR 785+ Loft down
  • DWR Loft - The down in this sleeping bag is treated with a durable water repellent polymer that protects the down from moisture while also improving the loft
  • Outer shell made from lightweight highly water resistant and breathable Hydronaute XT
  • Inner shell made from Ultra- light 15 Denier Nylon
  • Box walled construction for warmth and weight efficiency
  • Radial Arc Baffle System maximises baffle loft height
  • Differential cut reduces the potential for cold spot compression
  • Contoured Hood keeps down evenly distributed around your head
  • Toaster foot pocket for air activated heat pad
  • Oven door foot venting system for temperature regulation
  • Tuck stitching for increased durability of baffles
  • Baffles sewn with Hydrophobic Epic thread which prevents moisture from wicking inside the shell
  • YKK Full length side and foot zips to increase versatility
  • Left and right hand models can be zipped together
  • Oversized 3D draft tube with anti-snag tape retains heat
  • Nylon 210 denier laminated anti snag tape runs along zip
  • Internal shoulder collar muff retains body heat
  • Recessed draw-cords for comfortable warmth retaining closures
  • Supplied with ultra-light siliconised nylon compression sack
  • Large storage bag with printed care instructions


SKU POS-MowOssaHydronauteXT
Brand Mont

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