Temperature Ratings

Garment Combination Temperature Ratings

The Temperature Rating for each of the styles listed below has been established by testing to ASTM F2732 Standard Practice for Determining the Temperature Ratings of Cold Weather Clothing. These ratings are based on the insulation value of the garment ensemble over basic workwear at a particular activity level referred to as Metabolic Equivalent of Task (MET). The body generates more heat when it works harder, so with laborious work or higher activity level, you’ll be able to work comfortably in colder temperatures. Our garment ensemble Temperature Ratings are at a moderate activity level (walking at a fast pace), which is considered a 4 MET.

The ratings represent the ambient temperature at which a wearer will remain thermally neutral (neither gaining nor losing heat to the environment) when wearing the combination of styles listed at a moderate activity level.

Temperature Ratings for Garment Combinations

Insulated Garment Combinations Temperature Ratings
(Moderate Activity Level)
Insulated Hooded Jacket over Insulated Bib
368UT11 over 580UT11
-33°F
Insulated Parka over Insulated Bib
510UT70 over 580UT70
-27°F
Insulated Parka with Insulated Hood over Insulated Bib
510NX60 with 577NX60 over 580NX60
-46°F
Insulated Thinsulate Field Coat over Thinsulate Bib
528UT11 over 588UT11
-35°F
Jacket over Insulated Jacket/Liner with Insulated Hood over Insulated Bib
322UT11, 530UT70, 577UT11 and 580UT11
-44°F
Jacket over Insulated Jacket/Liner with Insulated Hood over Insulated Bib
320NX60, 530NX45, 577NX60 and 580NX60
-48°F
Insulated Coverall with Insulated Hood
590NX60 with 577NX60
-37°F
Insulated Coverall with Insulated Hood
590UT70 with 577UT70
-35°F

Temperature Ratings for Jackets

Insulated Garment Combinations Temperature Ratings
(Moderate Activity Level)
Insulated Hooded Jacket
368UT11
-2°F
Insulated Parka without Hood
510UT70
-2°F
Insulated Parka with Insulated Hood
510NX60 with 577NX60
-11°F
Insulated Thinsulate Field Coat
528UT11
0°F
Jacket over Insulated Jacket/Liner with Insulated Hood
322UT11, 530UT70 and 577UT11
-7°F
Jacket over Insulated Jacket/Liner with Insulated Hood
320NX60, 530NX45 and 577NX60
-6°F

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