The world's lightest full-size down sleeping bag with 1000+ fill power RDS goose down. The Mont Zero Ultralight Sleeping Bag weighs only 10.4oz. and packs to a size of a 33.8 fl.oz. (1L) bottle.

Maximise your backpack space & minimise your carried weight with the Zero UL Sleeping Bag. Perfect for spring and summer bike packing, ultralight hiking in warmer climates or as a liner for your existing sleeping bag.

The Mont Zero UL Sleeping Bag weighs only 10.4oz, packs to a size no more than a 33.8 fl.oz. (1L) bottle and accommodates a user up to 6’ 7" (200cm) tall (XL).

The Zero UL Sleeping Bag uses the World's lightest downproof Nylon: Anti-Gravity Nylon. Superfine threads of only 7 denier are woven at over 520 threads per square inch producing an incredibly light, super smooth downproof fabric: Anti-Gravity Nylon weighs only, approximately, 21grams per square metre!

Anti-Gravity Nylon is extremely light but also sufficiently durable thanks to its super-high thread count, mini-ripstop weave & a double cire heat treatment that also increases down-proofness.

The exceptionally low weight of Anti-Gravity Nylon also allows down to loft to its full potential with minimal restriction; meaning more warmth with less down, less weight & less bulk.

Perfect for Bike Packing, Ultralight Bushwalking, or as an extender
The world's lightest full-size down sleeping bag
Compresses to a tiny 33.8 fl.oz. (1L) package
Made with Anti-Gravity Nylon inside and out, the World's lightest downproof Nylon: 7 denier with mini rip-stop, a thread count in excess of 520, double heavy cire downproof treatment, and weighing only ~21g/m2!
4.2oz. (120g) of 1000+ loft 98/2 Premium RDS White Goose Down with water resistant DWR Loft treatment
Vertical baffles on torso maintain optimal down distribution
1/2 side zip using ultralight YKK #3 Zip weighs only 0.1oz. (4g)
Mini-baffles with sewn through construction
Sewn with hydrophobic Epic thread to prevent moisture from wicking along seams and inside the shell
Sewn with hydrophobic Epic thread to prevent moisture from wicking along seams and inside the shell
Hoodless construction
Includes ultralight Nylon stuff sack & large storage sack

Specifications

  • Intended Use Ultralight Hiking
  • Season Rating 2 Season
  • Cold Sleeper 55°F / 13°C
  • Warm Sleeper 45°F / 7°C
  • Shell fabric Ultralight Anti Gravity Nylon
  • Lining fabric 100% recycled ultralight silk-touch 15 denier downproof Nylon
  • Standard size weight 4.2oz. (120g) fill, 10.4oz. (294g) total
  • Packed size* 4.7x10.2 inches (12x26cm)
  • Down rating 1000+ loft premium RDS white goose down
  • Down treatment Water resistant DWR Loft treatment
  • Zip side Left
  • Zip configuration Ultralight 1/2 length side zip
  • Colour Shadow/Black
  • *Can be compressed smaller using compression sack