How do you layer properly for a hunt?

You do not build it around the coldest minute of the day. That is where people get it wrong. A hunting layering system works better when you start with moisture control, then add warmth in stages, then use weather protection only when you actually need it. On the move, too much clothing becomes a problem fast.

Why do hunters still get cold in expensive gear?

Because warmth is only part of the story. Sweat is usually the bigger issue. You walk in wearing too much, you heat up, the base gets damp, then the pace drops and the cold catches up with you. A lot of bad days in the field start exactly like that.

What should a hunting base layer really do?

It should keep the skin side drier and help the rest of the system work. Not much more, not much less. If a base layer traps moisture or feels clammy after a bit of effort, the layers on top of it have to work harder. That is usually when comfort starts falling apart.

What is the difference between a shell and an insulated outer layer?

A shell is there to deal with weather. Wind, rain, wet brush, exposed ground. An insulated outer layer is there to hold heat when the cold becomes the main problem. They can sit in the same part of your system, but they do not do the same job.

How do you avoid sweating when hunting in the cold?

Usually by starting a bit underdressed. It sounds wrong until you try it. But if you leave the truck already too warm, you will sweat on the first proper climb or even during a steady walk. Once that moisture builds up, the rest of the day gets harder to manage.

How many layers do you really need?

There is no fixed number. Early-season movement in mild weather is one thing. A cold sit, wind, and low light at the end of the day is another. The point is not to wear more pieces just because they are there. The point is to have enough range to adjust without losing comfort.

Why do layered systems usually work better than one heavy hunting jacket?

What is the advantage of Hillman’s layering system? What materials are used in the layers?

Hillman’s 6-Level Layering System for Hunting: Stay Warm & Dry

When you're out in nature’s harshest elements, staying warm and dry isn’t a luxury - it’s a necessity. But finding a layering system that is up to 22 times more effective than any other is the advantage you get only with Hillman!

Redefining Efficiency with Up to 22-Fold Better Performance Than Market Leaders

Every layer works in synergy to boost the next, exponentially amplifying thermal efficiency.

By meticulously selecting and combining materials that are individually 50% to 200% more efficient than industry standards, we've engineered a hunting layering system that dramatically outperforms conventional gear.

When these layers work together, the results are exponential, providing a 2,221% boost in thermal regulation. It ensures you stay warm, dry, and comfortable, all with fewer layers, less bulk, and reduced weight.

Mastering the Layers

A layering system is the smartest way to make your clothing work most efficiently. With layering, you can build combinations suited to your preferred temperature and remove layers if it warms up.

Mastering the layering system is simple. Once you understand it, you’ll never go back to heavy, insulated clothing that can overheat you or leave you cold due to its lack of versatility.

Use the layers in different combinations for optimal comfort in various conditions. Refer to this table to learn how to combine layers.

Hillman's 6-Level Layering System:

1st Hunting Underwear

The first hunting underwear layer (1UL) is made primarily from bamboo fiber and absorbs moisture 200% more efficiently than cotton.

1UL Underwear Layers:

Made for bamboo-cotton blend:

BAMBOO BASE LONG SLEEVE [1UL] HUNTING T-SHIRT

BAMBOO VENT SHORT SLEEVE [1UL] HUNTING T-SHIRT

Made of cotton: Hunting Boxair

2nd Hunting Base Layer

The second layer, called the hunting base layer (2BL), features an inner bamboo fiber surface for maximum moisture absorption combined with 15µm Merino wool for fast evaporation.

2BL Base Layers:

15.5µm MERINO-BAMBOO TOP [2BL] HUNTING BASE LAYER

15.5µm MERINO-BAMBOO BOTTOM [2BL] HUNTING BASE LAYER

3rd Hunting Mid-layer

The third layer, our hunting mid-layer (3ML), is made of 18µm Merino-Bamboo fleece, which enhances warmth and breathability.

3ML Midlayer:

18µm MERINO-BAMBOO FLEECE HOODIE [3ML] HUNTING MID-LAYER

4th Hunting Insulation Layer

The fourth layer is the Hunting Insulation Layer, which we call 4IL. Featuring 1000-fill-power down - the most efficient insulation on the market - it delivers 43% more warmth than standard 700-fill down. Ultralightweight yet exceptionally warm, it is engineered for maximum heat retention without the bulk.

The unique seamless tube fabric is crafted with an extremely high-density weave to deliver exceptional breathability, downproofing, and stretch - without relying on the coatings commonly used by others that compromise airflow.

4IL Insulation Layer:
1000FP DOWN JACKET [4IL] HUNTING INSULATION LAYER

5th Ultralight Waterproof Layer

The fifth waterproof layer, known as 5WL, is an ultralight Outer Layer featuring a cutting-edge membrane with 32,000 g/m²/24h breathability. That’s an impressive 113% more efficient than the best competitors in moisture escape and over 500% more efficient than most mid-range membranes. This layer keeps out rain and wind while allowing sweat to evaporate quickly, so you stay dry without sacrificing protection.

5WL Ultralight Waterproof Layer:
5WL ALPHA - ULTRALIGHT WATERPROOF HUNTING JACKET
5WL ALPHA - ULTRALIGHT WATERPROOF HUNTING PANTS

6th Outer Insulated Waterproof Layer

The sixth outer layer, our insulated waterproof layer (6OL), features the world’s most breathable membrane and the lowest weight-to-warmth ratio Matrix® insulation. The insulated waterproof hunting jacket outperforms any jacket on the planet in terms of breathability and weight and its ability to withstand extreme cold.

It features the Termovent™ multi-level anti-moisture and anti-condensation system, delivering unmatched thermoregulation and efficiency in cold weather.

6OL Outer Insulated Waterproof Layer:
6OL ALPHA - WATERPROOF INSULATED HUNTING JACKET

6OL ALPHA - WATERPROOF INSULATED HUNTING PANTS

The Exponential Advantage

Each layer's superior materials amplify the performance of the others, leading to exponential gains in warmth, dryness, and comfort.

High-efficiency materials provide maximum warmth and protection without added weight or bulk, reducing fatigue during long treks.

Combined Efficiency Explained

When these layers are worn together, their individual efficiencies compound exponentially rather than simply adding up.

Calculating Combined Efficiency:

Underwear Layer Efficiency: 3.00 (since bamboo fiber is three times more efficient than cotton)
Base Layer Efficiency: 1.50 (50% more efficient)
Mid Layer Efficiency: 1.70 (70% more efficient)
Insulation Layer Efficiency: 1.43 (43% more efficient)
Outer Layer Efficiency: 2.13 (113% more efficient)

Total Efficiency:

3.00×1.50×1.70×1.43×2.13≈23.21

What This Means:

Our layering system provides approximately 2,321% greater overall efficiency in thermal regulation compared to the world’s leading competitors.

From the moisture-wicking bamboo underwear to the high-performance outer shell, every layer is crafted with the sole purpose of amplifying efficiency so you stay focused on the hunt.

Try our superb layering system - we promise to outperform the competition and exceed your expectations.

With our advanced layering system, you’re not just prepared for the elements - you’re ready to conquer them.

Layering System