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
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