STALKMASTER BASETHERM™
StalkMaster BaseTherm™ is a fleece-lined thermal base layer set, consisting of a long-sleeved top and compression pants, designed to provide warmth, comfort, and freedom of movement. The flexible polyester-elastane fabric adapts to the body’s movements, while the soft fleece lining retains heat and the breathable construction facilitates moisture management during more active hunting sessions. Intended to be worn under hunting apparel, BaseTherm™ serves as a comfortable foundation for activities in cool weather and for long periods spent waiting in a blind or stand.
Complete your setup
Complete Outdoor Set
Fleece-lined jacket + trousers · pick colour & size
ScoutPro Bino Harness
Binoculars ready on your chest
Thermal Socks
Merino wool blend boot socks
90 DAYS FIELD-TESTED GUARANTEE
Actually hunt in it. If it does not hold up, send it back. Most guarantees quietly assume you will never really use the product. This one assumes you will.
BEST USE
Where BASETHERM™ works best.
- Best use
- Wear beneath your hunting clothing for added warmth and comfort.
- Conditions
- Cool to cold weather, frosty mornings, and extended periods outdoors
- Layering position
- Base layer, worn next to the skin, beneath mid and outer layers.
- Not designed for
- For long sessions in intense cold, wear it underneath the Stalkmaster™ Outdoor Set.
The STALKMASTER BASETHERM™ thermal set combines a long-sleeve compression top and matching fleece-lined bottoms to deliver warmth, comfort, and freedom of movement during cool-weather hunts and outdoor activities.
Made from stretch polyester and elastane, both garments provide a close compression fit that moves with you as you walk, stalk, and change position. The streamlined design fits comfortably beneath your hunting clothing.
A soft fleece lining helps retain body heat, while the breathable construction helps manage moisture during activity. From the walk into the woods to longer waits in the field, BASETHERM™ provides a comfortable foundation for your layering system.
TECHNICAL FEATURES
- Two-piece set: long-sleeve top and matching bottoms.
- Compression fit: close-fitting comfort for both garments.
- Polyester and elastane: flexible fabric that moves with you.
- Thermal fleece lining: soft warmth next to the skin.
- Breathable construction: helps manage moisture during activity.
- Base-layer design: fits beneath hunting clothing.
- Six colours available: match your set to your hunting gear.
Choose BASETHERM™ for fleece-lined warmth without excessive bulk. Its breathable stretch fabric and close compression fit keep you comfortable and moving freely beneath your hunting clothing.
Hunting, hiking, and extended waits in cool to cold conditions. Wear beneath your outdoor clothing for added warmth.
Yes a 90-day field-tested guarantee. Actually hunt in it. If it doesn't hold up or the size isn't right, contact us and we'll exchange it. Field use does not void the guarantee.
WARMTH STARTS HERE. MAKE IT YOUR BASE...
TERRAIN CAMO
A mix of tan, olive, and brown inspired by varied terrain. Suited to hunting setups for open country, dry grasslands, and brush-covered hills.
OLIVE GREEN
A solid olive shade that pairs easily with hunting gear. A versatile choice for woodland hunts, brush country, and everyday outdoor use.
SHADOW CAMO
Muted gray and charcoal tones for a darker hunting setup. Pairs well with gear used in shaded timber, rocky terrain, and ground blinds.
RIDGE CAMO
Earthy khaki and olive tones with a textured pattern inspired by rugged landscapes. Complements hunting gear for rocky slopes, foothills, and sparse brush.
WOODLAND CAMO
Classic green, brown, tan, and black camouflage inspired by forest cover. A natural match for wooded terrain, leafy undergrowth, and forest edges.
COMFORT IN THE FIELD STARTS WITH THE FIRST LAYER
The alarm sounds before dawn. Outside, the air is cold and the woods are quiet. Before you pull on your hunting gear, you start with the layer closest to your skin.
STALKMASTER BASETHERM™ pairs a long-sleeve compression top with matching bottoms, both lined with soft fleece to help retain warmth. Stretch polyester and elastane follow your movements as you lace your boots, shoulder your pack, and head into the timber.
As the trail climbs, the breathable fabric helps manage moisture. When you settle in to watch the tree line, the fleece lining provides welcome comfort beneath your outer layers.
From the first steps out of camp to the quiet wait ahead, BASETHERM™ gives your hunting setup a comfortable foundation.
Layer up. Move freely. Settle into the hunt.
90-DAY FIELD-TEST GUARANTEE
Put your STALKMASTER BASETHERM™ thermal set to the test during your hunting trips and outdoor activities.
You have 90 days from the date of delivery to evaluate the materials, fit, and comfort of both the long-sleeve top and matching bottoms.
Experience the warmth of the soft fleece lining, the flexibility of the stretch polyester and elastane fabric, and the close compression fit beneath your hunting clothing. Assess how the breathable construction helps manage moisture as you move, and how comfortably the set layers under your gear during longer waits in the field.
Our 90-Day Satisfaction Guarantee gives you time to decide whether BASETHERM™ meets your expectations for warmth, freedom of movement, layering, and comfort, beyond the initial try-on.
WHAT CUSTOMERS SAY ABOUT THE STALKMASTER BASETHERM™ SET
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SOFT AND WARM
“Bought the Olive Green set to wear under my hunting clothes. The inside feels soft, and I can bend down or climb without the fabric pulling. Fits snug, which is what I wanted for a base layer.”
Cody R., US✓ Verified -
IT'S FINE FOR THE COLD
“Picked these up for fall hunting. The fleece lining feels nice against the skin, especially first thing in the morning. I still need my heavier layers when it gets properly cold, but these work well underneath.”
Nathan L.,Canada✓ Verified -
I USE THEM AT HOME AS WELL
"I am quite satisfied with this set. I wore both pieces underneath the jacket and trousers I usually wear during an outdoor session on a cold morning. Sometimes I even keep them on when I get back home because they are very comfortable."
Ethan W.,US.✓ Verified
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FORM-FITTING AND COMFORTABLEf
I wore the outfit for a morning hunting trip in the woods. It has a close fit without being restrictive; the top layer can be worn comfortably under a jacket. Overall, I am satisfied with it.
James W., UK✓ Verified
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⭐⭐⭐ FAST SHIPPING
It arrived a few days after purchase – I haven’t worn it yet, but at first glance, it appears to be very well-made and crafted from excellent material. I’ll try it out very soon.
George P., UK✓ Verified
How StalkMaster Basetherm™ Stacks Up
See The Difference
TWO PIECES. ONE FOUNDATION FOR WARMTH.
Trusted by 5,000+ Hunters Worldwide
TAKE IT OUTSIDE. DECIDE FOR YOURSELF.
90-day field test guarantee
90-day field test guarantee
COMPLETE YOUR KIT
Your hands are covered. Add the set, the optics and the socks.
THE CORE SET
Jacket and fleece-lined trousers, three layers in both: the base of every StalkMaster setup.
- Softshell outer that sheds rain and blocks wind
- Waterproof, windproof, breathable membrane
- Thick fleece lining in the jacket and the trousers
- 8 colourways, S–4XL: order two sizes up
Complete Outdoor Set
Pick your colour and size, then add
YOUR OPTICS
Binoculars on your chest, ready in one hand, quiet to open.
- Padded flip-top compartment fits most medium to full-size binoculars
- Zipped front and side pockets plus a mesh pocket for a rangefinder or calls
- Water-resistant 500D outer fabric
- One size with adjustable straps, over a base layer or a thick jacket
ScoutPro™ Bino Harness
Pick your colour, then add
YOUR FEET
Boot socks for long days and cold sits.
- Merino wool and nylon blend
- Cushioned sole
- Elastic cuff that stays up
- Made for boots, one size
Thermal Boot Socks
One size
Frequently Asked Questions
Each BASETHERM™ set includes one long-sleeve thermal top and one pair of matching bottoms in your selected color and size.
Yes. BASETHERM™ is designed as your first layer, worn next to the skin beneath your hunting clothing. Add insulating and protective outer layers as conditions require.
Check the size guide and compare your measurements before ordering. BASETHERM™ has a close compression fit, so expect it to sit snugly against your body.
Yes. The polyester and elastane fabric stretches to accommodate walking, stalking, kneeling, and changes in position.
The breathable construction helps manage moisture during activity, but comfort depends on your pace, the weather, and your outer layers. Adjust your layering as activity levels change.
Choose Olive Green, Terrain Camo, Shadow Camo, Woodland Camo, or Ridge Camo to coordinate with your hunting gear. When worn beneath other clothing, color has little effect on concealment.
The soft fleece lining helps retain body warmth in cool and cold conditions. BASETHERM™ is an insulating base layer, not a waterproof outer garment. For rain, wind, or extreme cold, add suitable protective layers.
Our 90-Day Satisfaction Guarantee gives you 90 days from delivery to evaluate their fit, comfort, and practical features. Please refer to our return policy for full terms and instructions.