|sleeping bag size||Women's/Small||Standard||Extra Large|
|Maximum user height||170cm / 5ft7in||185cm / 6ft||200cm / 6ft6in|
|Internal circumference at Shoulder||157cm / 61.75in||157cm / 61.75in||167cm / 65.75in|
|Internal circumference at Hip||133cm / 52.25in||133cm / 52.25in||143cm / 56.25in|
|Internal circumference at Foot||115cm / 42.25in||115cm / 42.25in||121cm / 47.5in|
The Zip Side is the side the zip is on when you’re lying on your back in the sleeping bag. A Left Zip will be on your left side, a Right Zip will be on your right side.
The Spindrift XT 850, available in Standard, Women's & XL sizes, is an uncompromising sleeping bags designed for alpine & extreme cold conditions: Backcountry camping, polar expeditions & high altitude mountaineering.
A unique Cordless Collar System, vertical baffles for insulation efficiency & new shell fabric providing marked improvements in function & performance.
The Spindrift XT series replaces the Specialist Boxfoot Series, with the Spindrift XT 850 model replacing the Zeal & Telemark models.
This product is filled with Premium White Down with a loft rating of between 825 and 850 cubic inches per ounce.
Mont's down is selected for it's high quality, purity and the fact that it is not live plucked.
All Mont Sleeping Bags are sewn with hydrophobic Epic Thread. The silicon impregnated in this thread prevents moisture wicking along seams and into the bag, keeping down dryer and warmer.
RDS is an independent, voluntary global standard that ensures down is not sourced via live plucking, that birds are not force fed & that a birds welfare is always upheld.
Certified by IDFL
Project #: 005963
The Toaster Pocket is for slow-release, air-activated heat packs: your toes and feet will never be cold again. The Toaster Pocket can be found in Spindrift, Expedition, Brindabella, Helium and Zodiac Series Sleeping Bags.
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.