Men's Clothing & Outerwear | Underwear & PajamasPolarmaxSold by Sportsmans Guide

Polarmax

Polarmax Youth SIngle Layer Long Underwear Bottoms

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Youth Single-layer

Long underwear bottoms for kids'

4-way Stretch

Supports a comfortable fit and

Acclimate Dry

Hydrophobic polyester fibers help manage

Relaxed Fit

Is designed for everyday comfortable

Gusset Eases

Movement and reduces seam bulk

$19.95
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SKU: WX2*0740958

Overview

Built for layering in cold-weather outings, these youth base layer bottoms provide midweight warmth with a relaxed fit that works well for everyday wear or time in the field. The 4-way stretch construction supports easy movement, while Acclimate Dry polyester fibers are designed to move moisture away from the skin to help maintain comfort. A gusset helps reduce seam bulk and improve mobility, and flat seam construction adds durability. With a simple 100% polyester build, they offer practical cold-weather coverage without unnecessary bulk.

Why Hunters Choose the Polarmax

4-way Stretch

Supports a comfortable fit during

Acclimate Dry

Polyester fibers help move moisture

Relaxed Fit

Suits everyday wear and layering

Gusset Design

Eases movement and reduces seam

Flat Seam

Construction adds durability and helps

Key Features

  • Youth single-layer long underwear bottoms for kids' thermal layering.
  • 4-way stretch supports a comfortable fit and easy movement.
  • Acclimate Dry hydrophobic polyester fibers help manage moisture.
  • Relaxed fit is designed for everyday comfortable use.
  • Gusset eases movement and reduces seam bulk.
  • Flat seam construction adds durability.
  • Midweight warmth for cooler conditions.

Best Used For

  • Youth hunters needing a comfortable base layer for cool-weather outings and layering
  • Kids who want relaxed-fit thermal bottoms for everyday cold-weather wear
  • Active young outdoors users who need stretch and easier movement under outer layers
  • Parents seeking moisture-managing long underwear bottoms for warm, dry comfort
  • Layering for hunting, camping, or winter activities where midweight warmth is useful

Specifications

Fabric TechnologyAcclimate Dry hydrophobic polyester fibers
FitRelaxed fit
GenderageYouth/kids
GussetGusset eases movement and reduces seam bulk
ImportedImported
Material100% polyester
Product TypeLong underwear bottoms
Seam ConstructionFlat seam construction
Stretch4-way stretch
WarmthMidweight warmth

Pros

  • 4-way stretch supports a comfortable fit during active use.
  • Acclimate Dry polyester fibers help move moisture away from skin.
  • Relaxed fit suits everyday wear and layering.
  • Gusset design eases movement and reduces seam bulk.
  • Flat seam construction adds durability and helps reduce irritation.
  • Midweight warmth offers a practical base layer option for cooler conditions.

Considerations & Trade-offs

  • Single-layer construction means these bottoms are best understood as a base layer, not a standalone outer pant for brush, wind, or abrasion protection.
  • The relaxed fit is comfortable for everyday wear, but it may feel less snug than some hunters prefer under close-fitting outer layers.
  • Midweight warmth offers useful insulation, though it may be more than needed for mild conditions and not enough on its own in very cold weather.
  • Polyester construction and moisture-management features are practical, but the product is not described as having added odor-control or weatherproofing properties.

Suggested Comparisons

  • Kids' thermal base layer bottoms
  • Youth insulated pants
  • Kids' base layer sets
  • Youth cold-weather underwear

Suggested Accessories

  • Youth base layer top
  • Insulated pants
  • Midweight socks
  • Moisture-wicking gloves

Frequently Asked Questions

What are these bottoms made of?

The listed material is 100% polyester.

Are these a heavyweight thermal layer?

No. The long description describes them as offering midweight warmth.

Do they have stretch for movement?

Yes. They are described as having 4-way stretch, and the gusset is noted to ease movement and reduce seam bulk.

How do they handle moisture?

The Acclimate Dry hydrophobic polyester fibers are described as managing moisture effectively and helping transport moisture away from the skin.

What fit should I expect?

They are described as having a relaxed fit for everyday comfortable use.