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B3 vs B6 Shearling Bomber Jacket Warming Level Difference

Liveinstyle33

One of the Regulars
Messages
101
Comparing these 2 versions of the famous shearling bomber jackets, I would assume the bulkier B3 Bomber jacket is warmer, however is it significantly warmer? Is the B6 jacket suitable for -20 celsius/ -4 fahrenheit or below? If anyone happens to know these 2 particular styles of shearling jackets or something similar to them, I would appreciate your input. Here are 2 links of the different jackets from Thurston Bros website. There are more B3's but the one I choose looks standard enough.

A B6 Style
https://www.thurston-bros.com/colle...of-aero-type-b-3-usaaf-contract-no-42-22899-p

A B3 Style
https://www.thurston-bros.com/colle...ts/aero-type-b-3-usaaf-contract-no-42-22899-p
 

MrProper

My Mail is Forwarded Here
Messages
3,994
Location
Europe
Since the B-6 has lighter shearling, I assume the B-3 with heavy duty shearling is warmer. And at -20 C I would take the thickest I can get ;)
 

powersci

One of the Regulars
Messages
289
Location
Chicago
Comparing these 2 versions of the famous shearling bomber jackets, I would assume the bulkier B3 Bomber jacket is warmer, however is it significantly warmer? Is the B6 jacket suitable for -20 celsius/ -4 fahrenheit or below? If anyone happens to know these 2 particular styles of shearling jackets or something similar to them, I would appreciate your input. Here are 2 links of the different jackets from Thurston Bros website. There are more B3's but the one I choose looks standard enough.

A B6 Style
https://www.thurston-bros.com/colle...of-aero-type-b-3-usaaf-contract-no-42-22899-p

A B3 Style
https://www.thurston-bros.com/colle...ts/aero-type-b-3-usaaf-contract-no-42-22899-p

I have both the B-6 and B-3 from Aero. It's currently -1°F (-24°F w/ windchill) and my Aero B-3 is doing very well with only a t-shirt under. The B-6 is a great jacket, but I wouldn't use it for that low of temperature without layering a sweater or hoodie underneath. The B-6 is more wearable and usable: easier to grab and go with it than the B-3. The B-3 tends to be overkill for most cold weather, but I love wearing it.
 

s4rmark

One of the Regulars
Messages
147
Location
Kent
Same here , if the temperature gets down to freezing I need a sweater and T shirt with the B-6. Only need a T shirt with the B-3 as it’s a beast of a jacket but quite heavy. B-6 is light and much more wearable.
 

Liveinstyle33

One of the Regulars
Messages
101
I have both the B-6 and B-3 from Aero. It's currently -1°F (-24°F w/ windchill) and my Aero B-3 is doing very well with only a t-shirt under. The B-6 is a great jacket, but I wouldn't use it for that low of temperature without layering a sweater or hoodie underneath. The B-6 is more wearable and usable: easier to grab and go with it than the B-3. The B-3 tends to be overkill for most cold weather, but I love wearing it.
This is valuable input, thank you.
 

Liveinstyle33

One of the Regulars
Messages
101
Same here , if the temperature gets down to freezing I need a sweater and T shirt with the B-6. Only need a T shirt with the B-3 as it’s a beast of a jacket but quite heavy. B-6 is light and much more wearable.
Appreciate that.
 

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