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Helium 300 -1ºC

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International
Bag

Helium 300 -1ºC

SKU# 10.20.1

US$499.96

Quick Overview

If super lightweight walking or ski touring is the thing for you then the Mont Helium sleeping bag series is an ideal choice. Impressively light, surprisingly compact and exceptionally warm by way of 800+ loft down.

Helium 300 sleeping bag

Description
If super lightweight walking or ski touring is the thing for you then the Mont Helium sleeping bag series is an ideal choice. Impressively light, surprisingly compact and exceptionally warm by way of 800+ loft down.
Delivery

Orders will be shipped to your nominated delivery address which can be either your home, business or Post Office box. We do prefer that you nominate a delivery address where somebody will be available to accept the package and sign for the delivery.
For more information see Delivery.

Guarantee

The Mont Adventure Equipment product warranty covers Mont products against faulty materials and workmanship for a period of 5 years, commencing from the date of purchase.
For more information see Guarantee.
The Mont warranty does not apply to non-Mont brand products.

Size Guide

Sleeping Bag Size Guide

Size (cm)WMN'SSTDXL2XL
Max. User Height 170 185 200 200
Max. Shoulder Circumference 155 160 170 176
Size (inches)WMN'SSTDXL2XL
Max. User Height 67 73 79 79
Max. Shoulder Circumference 61 63 67 69
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  • Description
    If super lightweight walking or ski touring is the thing for you then the Mont Helium sleeping bag series is an ideal choice. Impressively light, surprisingly compact and exceptionally warm by way of 800+ loft down.
  • Delivery

    Orders will be shipped to your nominated delivery address which can be either your home, business or Post Office box. We do prefer that you nominate a delivery address where somebody will be available to accept the package and sign for the delivery.
    For more information see Delivery.

  • Guarantee

    The Mont Adventure Equipment product warranty covers Mont products against faulty materials and workmanship for a period of 5 years, commencing from the date of purchase.
    For more information see Guarantee.
    The Mont warranty does not apply to non-Mont brand products.

  • Technical details
  • Reviews (1)

Technical details

Reviews (1)

  • Minimise your load on your next bush walk with a Helium 300 sleeping bag. Outstanding warmth in an ultra compact package ideally suited to cool weather, three season camping in temperatures as low as -1ºC

    New shell fabric and down fill on the latest Helium production mean higher performance and less weight than ever. Durable 10 by 10 denier, 520 thread count Nylon weighing only 26g/m2 with a hot-rolled-cire treatment to prevent down leakage and increase durability. A new 800+ loft white down fill with DWR Loft treatment adds greater resilience, higher loft and better warmth in damp conditions.

    • Weight: 640g
    • Down Fill Weight: 300g
    • Down: 800+ loft white down Unsure about down?
    • Down treatment: DWR Loft
    • Shell Fabric: 10 by 10 denier, 520 thread count, ultralight Nylon (26g/m2)

    • Intended Use: Bushwalking
    • EN 13537 Temperature Rating: Women's Comfort 4ºC. Men's Limit -1ºC. T Extreme -17ºC*

    • Maximum User Height: 185cm
    • Maximum Shoulder Circumference: 160cm

    To compare Mont Sleeping Bags see the Sleeping Bag Performance Guide

    *EN 13537 T Extreme is a survival rating only. Do not rely on this rating for general use!

    • DWR 800+ Loft
    • Radial Arc
    • DWR Loft
    • CFDIA Non Live-Plucked Guarantee
  • Product Details

    • Filled with 300g of 800+ loft white down
    • DWR Loft treatment on down keeps down lofting higher for longer in damp conditions
    • Outer shell made from ultralight Nylon, 10 by 10 denier, 520 thread count, down proof, 26g/m2
    • Inner shell made from 15 denier down proof Nylon
    • Box walled construction for warmth and weight efficiency
    • Radial Arc Baffle System maximises baffle loft height
    • Differential cut reduces the potential for cold spot compression
    • Contoured hood keeps down evenly distributed around your head
    • Oven door foot venting system for temperature regulation
    • Tuck stitching for increased durability of baffles
    • Baffles sewn with Hydrophobic Epic thread which prevents moisture from wicking inside the shell
    • YKK Full length side and foot zips to increase versatility
    • Left and right hand models can be zipped together
    • Oversized 3D draft tube prevents heat loss along zip
    • Nylon 210 denier laminated anti-snag tape runs along zip
    • Supplied with ultralight siliconised nylon stuff sack and large storage bag with printed care instructions
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Excellent, well made bag.

22 July 2019

I bought the Helium 300 about 6 weeks ago as a lightweight option to my 30 year old bags that are nearly 3 times the weight.

I have had an opportunity to use the 300 twice since. The first time was in a camping cave, sleeping in the open and it performed very well. I always use a silk liner in my bags and slept comfortably but it was a still, mild night, so hard to make an assessment on how it performed when the temperatures drops.

Well that opportunity came with the next use where below zero temperatures were predicted. Given the rating of the bag I thought it might struggle in these conditions with just a silk liner so I purchased a thermolite liner to give some extra warmth. We were in a tent this time and it ended up being a very cold night, probably down to about -3 C and the bag performed well given it was considerably colder than the comfort level of 4 C and even below the lower limit of -1 C. I slept well enough, but it would not have wanted to get much colder. I am a warm sleeper though, so I think you'd need the Helium 450 or 600 if you are a cold sleeper and you'll be in conditions that fall below the comfort level rating of the 300.

Overall, very happy with the bag so far and I'll probably end up purchasing the Helium 450 or 600 for use when it looks like below zero temperatures are on the cards.

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