Comfort in the Extreme: Using advanced monolithic PU membrane technology, Hydronaute XT fabric is completely waterproof, totally windproof & highly breathable. Guaranteed to maintain greater warmth & comfort than coated fabrics, Hydronaute XT is the best protection for down sleeping bags & clothing in cold to extreme conditions.

Waterproof to 20,000mm: Keeping down dry is vital for optimal performance; wet down just won’t keep you warm. Waterproof Hydronaute XT fabric provides exceptional moisture protection for down clothing & sleeping bags.

Highly Breathable 20,000g/m2/24hrs: If not removed promptly, water vapour from your body will gather on down & reduce its ability to trap warmth. Hydronaute XT fabric expels 20L of water vapour per square metre per 24 hours for drier down, greater loft & maximum warmth.

Warmth Sealed In: With a 100% windproof rating, even Arctic blasts will not penetrate Hydronaute XT fabric, keeping warm air trapped inside.

Mont’s new Cordless Collar System provides superior insulation around your shoulders and neck without the need for uncomfortable and fiddly draw cords.

The Cordless Collar can be wrapped snugly around your neck and shoulders or in warmer conditions can be secured inside the sleeping bag to increase ventilation.

The Cordless Collar is a unique Mont design and can be found on Brindabella, Spindrift and Expedition 8000 sleeping bags.

The Radial Arc Baffle System is a significant design innovation that improves the thermal efficiency of a Mont Sleeping Bag.

Radial Arc Baffles curve naturally around your body rather than bending around your body. When a down baffle (chamber) is bent or distorted, ripples in the fabric occur which will compress down and create cold spots. The Radial Arc Baffle System reduces bending and distortion and increases loft and warmth.

Tuck stitching is a construction method that conceals the stitch inside the sleeping bag thereby protecting it from abrasion and snagging. This is in comparison to top stitched seams where each stitch is exposed. Tuck stitched seams are also more water resistant than top stitched seams, again because the seam is concealed internally.

Tuck stitching attaches the lock-knit baffle fabric to a small fold in the shell material. Tuck stitching joins three layers of fabric making for a much stronger seam than top stitching that only joins two.

The Z-Force Compression Stuff Sack is the original and only stuff sack that utilises mechanical advantage to compress gear smaller with less effort. Three compression straps in pulley configuration compress your gear from both ends with a single pull of each. Pack your gear smaller than ever with less effort.