Youth Thermal Base Layers: Warm, Technical Cold Weather Wear

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  • Youth Single Layer Crewneck

    Youth Single Layer Crewneck

    Youth Single Layer Crewneck

    $ 30.00
    Sale price  $ 30.00 Regular price 
  • Youth Single Layer Tight

    Youth Single Layer Tight

    Youth Single Layer Tight

    $ 30.00
    Sale price  $ 30.00 Regular price 
  • Youth MicroFleece Crew

    Youth MicroFleece Crew

    Youth MicroFleece Crew

    $ 50.00
    Sale price  $ 50.00 Regular price 
  • Youth MicroFleece Tight

    Youth MicroFleece Tight

    Youth MicroFleece Tight

    $ 50.00
    Sale price  $ 50.00 Regular price 
  • Youth MicroFleece Zip-T

    Youth MicroFleece Zip-T

    Youth MicroFleece Zip-T

    $ 63.00
    Sale price  $ 63.00 Regular price 
  • Youth Double Layer Crewneck

    Youth Double Layer Crewneck

    Youth Double Layer Crewneck

    $ 34.00
    Sale price  $ 34.00 Regular price 
  • Youth Double Layer Tight

    Youth Double Layer Tight

    Youth Double Layer Tight

    $ 34.00
    Sale price  $ 34.00 Regular price 
  • Youth Active Stretch Bottom

    Youth Active Stretch Bottom

    Youth Active Stretch Bottom

    $ 40.00
    Sale price  $ 40.00 Regular price 
  • Youth Active Stretch Crew

    Youth Active Stretch Crew

    Youth Active Stretch Crew

    $ 40.00
    Sale price  $ 40.00 Regular price 
  • Youth Mountain Fleece Zip-T

    Youth Mountain Fleece Zip-T

    Youth Mountain Fleece Zip-T

    $ 63.00
    Sale price  $ 63.00 Regular price 
  • Youth Mountain Fleece Crew

    Youth Mountain Fleece Crew

    Youth Mountain Fleece Crew

    $ 55.00
    Sale price  $ 55.00 Regular price 
  • Youth Mountain Fleece Bottom

    Youth Mountain Fleece Bottom

    Youth Mountain Fleece Bottom

    $ 55.00
    Sale price  $ 55.00 Regular price 

Product Comparison

Comparison of product collections by fabric, warmth, weight, and features
Collection Fabric Content GSM Warmth Weight Stretch Best For Not Ideal For Origin Link
Double Layer 100% Polyester 150 Medium Midweight Mechanical Stretch Sustained cold, moderate activity, layering under looser fitting outerwear High-output activity, mild conditions, use under snug fitting bottoms Imported View Double Layer
Merino Wool 67% Polyester / 28% Merino / 5% Spandex 175 Medium Midweight Four-way / Flexible Cold conditions, moisture management, odor control, multi-day wear Heavy-duty work use or warm weather Imported View Merino Wool
Single Layer 100% Polyester 175 Light Lightweight Mechanical Stretch High-output or dynamic activity requiring maximum breathability Very cold or stationary conditions Imported View Single Layer
Active Stretch 84% Polyester / 16% Spandex 180 Medium Midweight Four-way / High-mobility High-movement cold-weather activity, skiing, snowboarding, outdoor work Low-output stationary use or extreme cold where warmth is top priority Imported View Active Stretch
Mountain Fleece 100% Polyester 205 Maximum Heavyweight Mechanical Stretch Very cold conditions, low-to-moderate activity, all-day warmth High-output or dynamic activity Imported View Mountain Fleece
Microfleece 92% Polyester / 8% Spandex 230 Medium-Heavy Midweight-Heavy Four-way / Flexible Heavy-duty work use or cold weather High-output activity Imported View Microfleece

Double Layer

Fabric Content
100% Polyester
GSM
150
Warmth
Medium
Weight
Midweight
Stretch
Mechanical Stretch
Best For
Sustained cold, moderate activity, layering under looser fitting outerwear
Not Ideal For
High-output activity, mild conditions, use under snug fitting bottoms
Origin
Imported
View Double Layer →

Merino Wool

Fabric Content
67% Polyester / 28% Merino / 5% Spandex
GSM
175
Warmth
Medium
Weight
Midweight
Stretch
Four-way / Flexible
Best For
Cold conditions, moisture management, odor control, multi-day wear
Not Ideal For
Heavy-duty work use or warm weather
Origin
Imported
View Merino Wool →

Single Layer

Fabric Content
100% Polyester
GSM
175
Warmth
Light
Weight
Lightweight
Stretch
Mechanical Stretch
Best For
High-output or dynamic activity requiring maximum breathability
Not Ideal For
Very cold or stationary conditions
Origin
Imported
View Single Layer →

Active Stretch

Fabric Content
84% Polyester / 16% Spandex
GSM
180
Warmth
Medium
Weight
Midweight
Stretch
Four-way / High-mobility
Best For
High-movement cold-weather activity, skiing, snowboarding, outdoor work
Not Ideal For
Low-output stationary use or extreme cold where warmth is top priority
Origin
Imported
View Active Stretch →

Mountain Fleece

Fabric Content
100% Polyester
GSM
205
Warmth
Maximum
Weight
Heavyweight
Stretch
Mechanical Stretch
Best For
Very cold conditions, low-to-moderate activity, all-day warmth
Not Ideal For
High-output or dynamic activity
Origin
Imported
View Mountain Fleece →

Microfleece

Fabric Content
92% Polyester / 8% Spandex
GSM
230
Warmth
Medium-Heavy
Weight
Midweight-Heavy
Stretch
Four-way / Flexible
Best For
Heavy-duty work use or cold weather
Not Ideal For
High-output activity
Origin
Imported
View Microfleece →