Snowflake Rating System

The Snowflakes on each style of underwear help you determine your needs. The Kenyon Snowflake Rating system has been devised to simplify your selection of thermals.
  Lightweight Medium Weight Expedition Weight
Thermal Polypropylene Rib
Silkyester
Poly-Lite Rib
Outlast® Rib
Poly/Wool/Polypro
Kenyon BiComponent
Outlast® BiComponent
Everywear
Merino Wool
Eco-Thermals
Polypropylene Fleece
Polarskins Fleece
Rating Single Snowflake Single Snowflake Single Snowflake Single Snowflake Single Snowflake Single Snowflake
Recommended
Usage
Moderate weather with little activity; continuous activity in cold weather Moderate to cold weather with some activity; cold weather when you alternate between activity and rest. Sub-freezing temperatures at any level of activity.
Applied Sports &
Activities
Cross Country Skiing, Running, Hiking, Cycling. Walking, Standing, Skiing, Snow Boarding, and Ice Skating on extremely cold days. Winter Camping, Climbing, and Hunting

Subscribe

Size Chart
Mens S M L XL XXL
Waist 28 - 30 32 - 34 36 - 38 40 - 42 44 - 46
Chest 24 - 36 38 - 40 42 - 44 46 - 48 50 - 52
Womens
Waist 21 - 24 25 - 28 29 - 32 33 - 36  
Chest 30 - 32 34 - 36 38 - 40 42 - 44  
Kids
Equal To 4 - 6 7 - 8 10 - 12 14