MONT Zero Superlight Sleeping Bag 2°C

The Mont Zero range is the pinnacle of ultralight performance sleeping bags. Your holy grail for fast-and-light 2–3 season adventures. Every single gram has been optimised to deliver one of the lightest full-sized sleeping bags available. The Zero SL is powered by 230g of premium 1000+ loft RDS goose down and tips the scales at an incredible 417g. With a comfort rating down to 2°C and an XL length that suits users up to 6'8" (203cm), it punches far above its weight.

Built for bikepackers, hikers, and ounce-counters who refuse to compromise, the Zero SL excels wherever space and weight matter most. Its tiny pack size and featherlight build make it a versatile addition, use it solo for ultralight missions, pair it with another bag for extra warmth, or keep it in your pack as a reliable “just in case” layer for unpredictable trips.

Crafted from Mont’s advanced Anti-Gravity Nylon, the Zero SL achieves remarkable performance with minimal bulk. This ultralight fabric allows the down to loft freely and fully, delivering superior warmth with less fill, meaning more comfort, less weight, and unmatched efficiency on every adventure.

Comfort Temperature Rating for warm sleepers: 2°C, cold sleepers: 8°C. These ratings suggest the average user will be comfortable at or around those temperatures. These temperature ratings assume you're using an appropriately insulated sleeping mat, you are well hydrated, well fed and dry.

Standout Features

WORLD'S LIGHTEST DOWNPROOF NYLON: Anti-Gravity Nylon. Superfine 7 denier threads are woven at over 520 per square inch producing an incredibly light & super smooth downproof fabric: Anti-Gravity Nylon weighs only approximately 21g per square metre!

RADIAL ARC BAFFLE: 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 compressing the down around your body.
When a down baffle (chamber) is bent, ripples in the fabric occur, which will create cold spots and compress down. The radial Arc Baffle System reduces distortion and increases warmth and loft.

TOASTER POCKET: is for slow-release, air-activated heat packs: your toes and feet will never be cold again. 

EXCEPTIONAL PACKABILITY: packs down to the size of a 1-litre bottle.

More Help? For further assistance on choosing your down sleeping bag, we have an article explaining fill power, the pros and cons of down over synthetic insulation and more info on caring for your bag available to view here: A Guide to Down Sleeping Bags.

Features

• Perfect for Bike Packing, Ultralight hiking, or as an extender layer
  
• Vertical baffles on the torso maintain optimal down distribution
  
• Contoured hood for increased warmth
  
• Made with Anti-Gravity Nylon inside and out, one of the World's lightest downproof
• Nylon: 7 denier with mini rip-stop, a thread count in excess of 520, double heavy cire downproof treatment.
  
• 240g (Standard) and 260g (XL) of 1000+ loft 98/2 Premium White RDS goose down with water-resistant DWR Loft treatment
  
• 1/2 side zip using ultralight YKK #3 Zip weighs only 4grams
  
• Mini-baffles with sewn through construction
  
• Sewn with hydrophobic Epic thread to prevent moisture from wicking along seams and inside the shell
  
• Includes ultralight Nylon stuff sack & large storage sack

Specification 

• Intended use: Ultra Light Hiking/backpacking
• Season Rating: 2-3 Season
• Maximum User Height: Women: 170cm / Standard: 200cm / Long: 200cm
• Cold Sleeper Comfort Temp: 8°C
• Warm Sleeper Comfort Temp: 2°C
• Down treatment: Water-resistant DWR Loft treatment
  
• Max Shoulder Circumference: Women's: 160cm / Regular: 160cm / Long: 170cm
  
• Insulated collar: No
• Shell Fabric: Ultralight Anti Gravity Nylon
• Lining: 100% recycled ultralight silk-touch 15 denier downproof Nylon
• Filling: Premium white goose down
• Fill power: 1000+
• Weight: Regular: 1000g / Long: 11600g
• Fill Weight: Regular: 230g / Long: 260g
• Compression Size: 12x26cm(standard) / 12x26cm(Long)
• Zip: : Left
• Zip Configuration: Ultralight 1/2 length side zip
• Colour: Shadow/Black
  
• Cut: Mummy