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What’s the ideal weight for base layers when hunting in extreme cold?

April 6, 2026

Quick Answer

Ideal base layer weights for hunting in extreme cold range from 150 to 250 grams per square meter (gsm) for merino wool tops and 150 to 200 gsm for bottoms.

Layering for Extreme Cold

When hunting in extreme cold, your base layer plays a crucial role in maintaining body heat. A good rule of thumb is to choose merino wool tops with a weight of 150 to 250 gsm, and bottoms with a weight of 150 to 200 gsm. This weight range provides the perfect balance of warmth, moisture-wicking properties, and breathability.

Camo Patterns and Scent Control

It’s essential to choose base layers with camo patterns that blend seamlessly with your surroundings, ensuring you stay hidden from your prey. When selecting a camo pattern, consider the colors and textures of your environment, as well as the time of day and lighting conditions. When it comes to scent control, merino wool is an excellent choice, as it has a low odor profile and natural antimicrobial properties that prevent bacterial growth.

Choosing the Right Fabric

When selecting a base layer, consider the specific activities you’ll be doing while hunting, such as sitting for long periods or engaging in high-intensity activities like stalking. Merino wool is an excellent choice for hunting, as it provides excellent warmth, moisture-wicking properties, and breathability. Look for merino wool tops and bottoms with a high percentage of merino wool content (around 80-100%) and avoid any treatments that may compromise the fabric’s natural properties.

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