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Mont-bell will expand its Seamless Down Hugger series (2)

Japanese outdoor equipment maker Mont-bell will remodel and expand its Seamless Down Hugger series for 2021. The seamless model does not require the bulkhead required for a normal sleeping bag, and since cold spots are not formed, the amount of down can be reduced, making it lighter and more compact. So let’s compare the seamless model with the company’s 2020 800 fill regular model in terms of weight and volume when stored.

1. Weight

temperature
(ISO23537,EN13537
comfort / Limit )
Seamless
Down Hugger 800
Down Hugger 800
-12℃ -20℃1,364g1,500g
-6℃ -13℃1,027g1,090g
-3℃ -10℃893g946g
0℃ -5℃703g759g
4℃ 1℃555g595g
8℃ 3℃462g458g
*1 Weight includes stuff sack *2 Downhugger 800 is a 2020 model. *3 Comfort temperature and limit temperature are indicated for seamless down huggers. The down hugger may be off by 1°C.

There is a reversal phenomenon when the corresponding temperature range is 8℃ 3℃, but it is clear that the model with more down is lighter.

2. Volume

temperature
(ISO23537,EN13537
comfort / Limit )
Seamless
Down Hugger 800
Down Hugger 800
-12℃ -20℃12.8ℓ14.7ℓ
-6℃ -13℃8.1ℓ8.1ℓ
-3℃ -10℃5.7ℓ6.8ℓ
0℃ -5℃4.7ℓ5.7ℓ
4℃ 1℃3.0ℓ3.8ℓ
8℃ 3℃2.4ℓ2.4ℓ
*1 As of February 27, 2021, when the author conducted his research, #0 has the same capacity. Probably an error on the Mont-bell web page.

We can clearly see that the more down there is in the model, the more compact it is. Mont-bell’s sleeping bags have always been popular for their high quality, but it looks like they will become even more popular.

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