Men's Hunting Clothing | Underwear & PajamasBlocker OutdoorsSold by Sportsmans Guide

Blocker Outdoors

Blocker Outdoors Koretec Men's Heavyweight Base Layer Top

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

Heavyweight Base

Layer top for hunting and

S3 Anti-microbial

Technology helps prevent odors

Fleece Lining

Dependable warmth

Polyester Outer

Smooth face for easy layering

Set-in Sleeves

Support mobility in the field

$34.99
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SKU: WX2*0711836

Overview

Built for cold-weather hunts, this heavyweight base layer top is designed to add warmth while helping manage odor with S3 anti-microbial technology. The polyester face layers smoothly under outer garments, while the fleece lining adds dependable insulation for long sits or active days in the field. Set-in sleeves support mobility, and smooth flatlock seams are added for comfort against the skin. It’s a practical choice when you want a warm, low-bulk layer that fits into a serious hunting system.

Why Hunters Choose the Blocker Outdoors

Heavyweight Base

Layer design adds dependable warmth

S3 Anti-microbial

Technology helps prevent odors before

Fleece Lining

Added warmth and comfort in

Smooth Polyester

Face layers easily under outerwear

Set-in Sleeves

Support mobility in the field

Key Features

  • Heavyweight base layer top for hunting and cold-weather layering.
  • S3 anti-microbial technology helps prevent odors.
  • Fleece lining provides dependable warmth.
  • Polyester outer with smooth face for easy layering.
  • Set-in sleeves support mobility in the field.
  • Smooth flatlock seams add comfort against the skin.

Best Used For

  • Cold-weather hunters needing a heavyweight base layer for dependable warmth under outerwear
  • Hunters prioritizing odor control during long sits or extended time in the field
  • Layered setups requiring a smooth polyester face for easy wear beneath other garments
  • Active hunters who want set-in sleeves and flatlock seams for comfortable mobility

Specifications

Face MaterialSmooth polyester face
GenderMen's
Human Scent ControlHelps keep wraps on your human scent
LayeringEasy layering
LiningFleece lining
Odor ControlPrevents odors
Outer MaterialPolyester
Product TypeBase Layer Top
SeamsSmooth flatlock seams
SleevesSet-in sleeves
TechnologyS3 anti-microbial technology
VersatilityWarmth and versatility
WarmthDependable warmth
WeightHeavyweight

Pros

  • Heavyweight base layer design adds dependable warmth under hunting layers.
  • S3 anti-microbial technology helps prevent odors before they start.
  • Fleece lining provides added warmth and comfort in cooler conditions.
  • Smooth polyester face layers easily under outerwear.
  • Set-in sleeves support mobility in the field.
  • Smooth flatlock seams help reduce chafing during wear.

Considerations & Trade-offs

  • Heavyweight construction with fleece lining is geared toward warmth, so it may be less suitable when you need a lighter base layer for milder conditions.
  • The smooth polyester face is designed for easy layering, but that also means it is focused on layering rather than standalone outerwear.
  • S3 anti-microbial technology is intended to help prevent odors, but it is not a substitute for regular washing and care.
  • Set-in sleeves and flatlock seams are comfort and mobility features, yet the fit and feel will still depend on how it layers under your hunting system.

Suggested Comparisons

  • Heavyweight base layer tops
  • Lightweight base layer tops
  • Hunting midlayers
  • Cold-weather hunting tops

Suggested Accessories

  • Base layer bottoms
  • Insulating midlayer
  • Hunting gloves
  • Cold-weather socks

Frequently Asked Questions

What is the main purpose of the Blocker Outdoors Koretec Men's Heavyweight Base Layer Top?

It is designed as a heavyweight base layer top for hunting, with S3 anti-microbial technology to help prevent odors and fleece lining for added warmth.

Does this base layer have odor control features?

Yes. The product description states that it uses S3 anti-microbial technology and a finish that helps prevent odors before they begin.

Is this top intended for layering under other hunting clothing?

Yes. The smooth polyester face is described as making it easy to layer.

What materials or construction details are mentioned?

The source data says it has a polyester outer backed with fleece lining, smooth flatlock seams for comfort, and set-in sleeves for mobility in the field.

What should I know about warmth and fit from the product information?

The product is described as heavyweight with fleece lining for dependable warmth. Specific sizing, fit details, and exact measurements are not provided in the source data.