Merino Wool for Hunting | THLETE Whitetail Deer Hunting

Merino Wool for Hunting | THLETE Whitetail Deer Hunting

May 19th 2019

What weight merino?

Choosing the right weight base layer is important. Staying comfortable in the outdoors during both hot and cold conditions is directly reflected by what you are wearing as a layering system. Merino was once viewed as a cold climate, one season, apparel layer but that is no longer the case. Merino wool is now designed to be used year-round, and its soft next to skin feel along with its superior temperature regulation, and moisture wicking makes it a fantastic choice for hunting.

Warming: Being that merino wool has natural crimps, the fiber is able to capture and trap more dead air creating warmth. Merino wool also does a great job of pushing moisture away from the skin so that you remain dry. Merino has the ability to absorb over 25% of your body’s moisture and still feel dry and warm as opposed to polyesters which will wet out and chill at 5-10%.

Cooling: Being that merino stores moisture it can readily increase evaporation when you begin to overheat allowing the air between your skin and the fabric to cool. The higher exertion and activity, the more evaporation takes place allowing for greater temperature control.

There are a lot of variables that go into the decision of what weight will work best for you but below is a brief guideline of recommendations.

Spring/early fall temps tend to fluctuate significantly. A mid-weight merino is typically best. This time of year can call for both a base and mid-weight layer.

Fabric weight: 170-220 gsm
Temp range: 35-60 F*
Time of year: April-May & September-November
Micron: 17.5 – 18.5

The summer is a great time for lightweight merino. Merino has great temperature regulation attributes to help push moisture out and cool the skin.

Fabric weight: 120-170 gsm
Temp range: 50-75 F*
Time of year: May – September
Micron: 17.5

Go heavy. Late season hunts mean temps below freezing and having a heavy base or mid layer is necessary. Again, at this time of the hunting season, you should be wearing multiple layers under your shell to stay warm.

Fabric weight: 220-400 gsm
Temp range: 0-35 F*
Time of year: November – March
Micron: 18.5


– Baselayer
– Light Breathable Shell

– Base Layer
– Mid Layer
– Shell

– Base Layer
– Mid (heavyweight) Layer
– Insulation Layer
– Shell

Merino wool is a great year round option that can be utilized in a multitude of hunting conditions and having multiple weights of merino for your hunting expeditions is a good idea. Obviously, what you wear as a shell will significantly impact the weight you choose. This is simply a beginner guide to get you headed in the right direction.