Hunter wearing the IWOM HeatLoc Pro Extreme in full-body mode while sitting in a tree stand
COLD WEATHER HUNTING GUIDE

WHAT IS THE WARMEST HUNTING SUIT?

When you're planning a cold-weather hunt, warmth isn't just about wearing the thickest coat you can find. Long sits change everything.

Quick answer: There isn't one hunting suit that can objectively be called the warmest for every hunter and every condition. For long stationary hunts, the most effective cold-weather systems combine insulation, protection from wind and moisture, full-body coverage and as few exposed gaps as possible.

The IWOM HeatLoc Pro Extreme was designed specifically around that long-sit style of hunting.

EXPLORE THE HEATLOC PRO EXTREME
THE LONG-SIT PROBLEM

THE COLDER PART OF THE HUNT STARTS WHEN YOU STOP MOVING.

WALKING IN
MOVING

Hiking, climbing and carrying gear generate additional body heat. Too much insulation during the walk can even make you sweat.

LESS MOVEMENT Less heat being generated
LONGER EXPOSURE Hours instead of minutes
MORE WIND EFFECT Especially in exposed stands
MORE COVERAGE MATTERS Especially legs and feet
ONE SYSTEM. THREE MODES.

WALK IN. SET UP. LOCK IN THE WARMTH.

The HeatLoc system changes with the hunt instead of forcing you to wear full-body insulation during every part of it.

IWOM HeatLoc Pro Extreme rolled into its self-contained carry mode
01
WALK IN

FANNY PACK / CARRY MODE

Roll the suit into its self-contained carry configuration for the hike to your hunting location.

Hunter wearing the IWOM HeatLoc Pro Extreme in jacket mode
02
GET SET

JACKET MODE

Wear it in jacket mode when you need more mobility while setting up, climbing or getting situated.

WHAT ACTUALLY MAKES HUNTING GEAR WARM?

WARMTH IS A SYSTEM.

01

INSULATION

Insulation slows the loss of the body heat you're already producing.

02

WIND PROTECTION

A wind barrier helps protect that warm pocket of air from moving cold air.

03

MOISTURE PROTECTION

Keeping insulating layers protected from rain and wet conditions is critical.

04

FULL-BODY CONTAINMENT

Reducing exposed areas and garment gaps helps create a more complete cold-weather system.

Full length IWOM HeatLoc Pro Extreme insulated hunting suit
WHY FULL-BODY CONTAINMENT?

YOUR LEGS AND FEET ARE PART OF THE WARMTH SYSTEM.

Traditional cold-weather setups usually separate the upper body, waist, legs and boots into several individual pieces.

HeatLoc approaches the stationary portion of the hunt differently: the full-length configuration surrounds the lower body and closes around the foot area to create a more contained space.

✓ Insulated full-body design
✓ Windproof construction
✓ Waterproof construction
✓ Zip-close insulated bottom panel
SEE THE HEATLOC PRO EXTREME
BUILT AROUND THE LONG SIT

DETAILS MATTER WHEN THE TEMPERATURE DROPS.

HeatLoc Pro Extreme insulated zip-close foot enclosure around hunting boots
FOOT ENCLOSURE KEEP THE LOWER BODY IN THE SYSTEM.
Close-up detail of the IWOM HeatLoc Pro Extreme hunting suit
WEATHER PROTECTION

KEEP THE ELEMENTS OUT.

The HeatLoc Pro Extreme uses waterproof and windproof construction with heat-sealed seams and rubberized zippers.

WATERPROOF WINDPROOF INSULATED
Bow hunter drawing a bow while wearing the IWOM HeatLoc Pro Extreme
WARMTH STILL HAS TO HUNT

STAY COVERED. STAY READY.

Warm gear isn't very useful if it gets in the way when the opportunity finally arrives.

The HeatLoc design keeps the hunter's arms and hands accessible while the lower body remains enclosed, allowing the system to work during bow and firearm hunting situations.

FREE ARM MOVEMENT Upper body remains ready for the shot.
HARNESS PASS-THROUGH Designed with tree-stand hunters in mind.
BUILT-IN HAND MUFF Another layer of protection for long stationary sits.
COMPARE COLD-WEATHER SYSTEMS

WHAT KIND OF HUNTING SYSTEM FITS YOUR HUNT?

Different approaches have different strengths. The important part is matching the system to how you'll actually be hunting.

Feature Jacket + Bibs Heated Clothing HeatLoc Pro Extreme
Insulated Varies Varies Yes
Full-body containment No Varies Yes
Foot-area enclosure No Varies Yes
Waterproof Varies Varies Yes
Windproof Varies Varies Yes
Requires batteries No Often No
Jacket mode Yes Varies Yes
Self-contained carry mode No No Yes
DON'T SKIP THE BASICS

EVEN THE WARMEST HUNTING SUIT WORKS AS A SYSTEM.

Adjust your layers for the temperature, wind, moisture, activity level and how long you expect to remain stationary.

01

BASE LAYER

Manage moisture against your skin and avoid becoming damp during the walk in.

02

INSULATING LAYERS

Add fleece, wool or other insulation appropriate for the conditions and your personal cold tolerance.

03

HEATLOC OUTER SYSTEM

Add insulated, waterproof and windproof full-body protection for the stationary portion of the hunt.

WHO SHOULD CONSIDER A FULL-BODY HUNTING SUIT?

BUILT FOR HUNTERS WHO DON'T WANT THE COLD ENDING THE HUNT.

TREE-STAND HUNTERS Long stationary sits with high wind exposure.
LATE-SEASON HUNTERS When temperatures drop and sits get uncomfortable.
ALL-DAY HUNTERS When leaving early because you're cold isn't part of the plan.
HUNTERS WHO RUN COLD For people who need more than a conventional jacket-and-bib setup.
QUICK ANSWERS

WARMEST HUNTING SUIT FAQ

What is the warmest type of hunting suit?

There isn't one universally warmest hunting suit because warmth depends on temperature, wind, moisture, activity, layering and the individual hunter. For long stationary hunts, look for insulation, wind protection, moisture protection and coverage that reduces exposed gaps around the lower body.

What should I look for in a top-rated cold-weather hunting suit?

Look at more than insulation alone. Consider wind and water protection, coverage around the legs and feet, freedom of movement, noise, how the suit works with a safety harness and how easily it transitions between walking and sitting.

What is the best hunting clothing for sitting all day?

Long sits usually require more insulation and weather protection than active hunting. A moisture-managing base layer, insulating mid-layers and an outer system that limits exposure to wind and precipitation are a strong starting point.

Are full-body hunting suits warmer than jackets and bibs?

A full-body containment system can reduce some of the separations and exposed areas found in multi-piece clothing systems. Actual warmth still depends on insulation, weather conditions and the layers worn underneath.

Do I still need layers under the HeatLoc Pro Extreme?

Yes. Your base and insulating layers should be adjusted to the conditions. The HeatLoc Pro Extreme becomes the insulated, weather-protective outer system around those layers.

Does the HeatLoc Pro Extreme require batteries?

No. HeatLoc does not depend on electric heating or batteries. Its warmth comes from insulation, weather protection and the full-body containment design.

Can I bow hunt while wearing the HeatLoc?

Yes. The design leaves your arms and hands available while using the full-length configuration, and it can also be worn in jacket mode when greater mobility is needed.

IWOM HEATLOC PRO EXTREME

WHEN THE HUNT GETS COLD, STAY IN THE HUNT.

Insulated. Waterproof. Windproof. Convertible full-body protection built around the long sit.