M-Tac Thermal Underwear Set Thermoline M-Tac Thermal Underwear Set Thermoline
M-Tac Thermal Underwear Set Thermoline M-Tac Thermal Underwear Set Thermoline
M-Tac Thermal Underwear Set Thermoline M-Tac Thermal Underwear Set Thermoline
M-Tac Thermal Underwear Set Thermoline M-Tac Thermal Underwear Set Thermoline
M-Tac Thermal Underwear Set Thermoline M-Tac Thermal Underwear Set Thermoline
M-Tac Thermal Underwear Set Thermoline M-Tac Thermal Underwear Set Thermoline
M-Tac Thermal Underwear Set Thermoline M-Tac Thermal Underwear Set Thermoline
M-Tac Thermal Underwear Set Thermoline M-Tac Thermal Underwear Set Thermoline
M-Tac Thermal Underwear Set Thermoline M-Tac Thermal Underwear Set Thermoline
M-Tac Thermal Underwear Set Thermoline M-Tac Thermal Underwear Set Thermoline
M-Tac Thermal Underwear Set Thermoline M-Tac Thermal Underwear Set Thermoline
M-Tac Thermal Underwear Set Thermoline M-Tac Thermal Underwear Set Thermoline
M-Tac Thermal Underwear Set Thermoline M-Tac Thermal Underwear Set Thermoline
M-Tac Thermal Underwear Set Thermoline M-Tac Thermal Underwear Set Thermoline
M-Tac Thermal Underwear Set Thermoline M-Tac Thermal Underwear Set Thermoline
M-Tac Thermal Underwear Set Thermoline M-Tac Thermal Underwear Set Thermoline
M-Tac Thermal Underwear Set Thermoline M-Tac Thermal Underwear Set Thermoline
M-Tac Thermal Underwear Set Thermoline M-Tac Thermal Underwear Set Thermoline
M-Tac Thermal Underwear Set Thermoline M-Tac Thermal Underwear Set Thermoline
M-Tac Thermal Underwear Set Thermoline M-Tac Thermal Underwear Set Thermoline
M-Tac Thermal Underwear Set Thermoline M-Tac Thermal Underwear Set Thermoline
M-Tac Thermal Underwear Set Thermoline M-Tac Thermal Underwear Set Thermoline
M-Tac Thermal Underwear Set Thermoline M-Tac Thermal Underwear Set Thermoline
M-Tac Thermal Underwear Set Thermoline M-Tac Thermal Underwear Set Thermoline
M-Tac Thermal Underwear Set Thermoline M-Tac Thermal Underwear Set Thermoline
M-Tac Thermal Underwear Set Thermoline M-Tac Thermal Underwear Set Thermoline
M-Tac Thermal Underwear Set Thermoline M-Tac Thermal Underwear Set Thermoline
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M-TAC

M-Tac Thermoline Thermal Underwear Set – First Layer Cold Weather Base Layer

$48.00
Shipping calculated at checkout.
Color: Black
Size: S
Hurry, only 3 left in stock!

Quick Facts

  • Type: First-layer thermal underwear set (top + bottom)

  • Material: 85% polyester, 15% spandex

  • Fabric: Two-component pile fiber with moisture-wicking interior

  • Temperature Range: Zero and sub-zero conditions

  • Antimicrobial: freshFX silver-based odor control

  • Weight: 0.7 lbs (S) to 0.84 lbs (XXL)


The M-Tac Thermoline Thermal Underwear Set is designed as a performance-driven first layer for cold-weather activity. Built for physical training, field use, and daily wear in freezing conditions, it regulates temperature while actively moving moisture away from the skin.

The two-component pile fiber construction wicks sweat, accelerates drying time, and helps maintain warmth without trapping excess moisture.


Built for Cold Weather Performance

  • Moisture-Wicking Interior – Moves perspiration off the skin to reduce chill.

  • Rapid Drying Fabric – Dries faster than cotton, wool, nylon, or acrylic.

  • Thermoregulation – Maintains core warmth during zero and sub-zero use.

  • Antibacterial Protection – freshFX silver-based treatment reduces odor buildup.

  • Breathable Construction – Supports extended physical activity without overheating.

  • Stretch Fit – Spandex blend enhances mobility and comfort under outer layers.


Specifications

  • Material: 85% polyester / 15% spandex

  • Construction: Two-component pile fiber

  • Use: First-layer base layer

  • Weight Range:

    • Size S: 0.7 lbs

    • Size XXL: 0.84 lbs

  • Odor Control: freshFX silver-based application

  • Intended Conditions: Zero and sub-zero temperatures


FAQ

Is this designed for extreme cold?
It is built for zero and sub-zero conditions as a first-layer base. Pair with insulating and outer shell layers for full cold-weather systems.

Does it retain odor after heavy use?
No. The freshFX silver-based treatment provides antibacterial protection and odor reduction.

Is it suitable for high activity levels?
Yes. The moisture-wicking and breathable design supports physical activity, sports, and field movement.


Reliable moisture control, odor resistance, and cold-weather thermoregulation make the M-Tac Thermoline Thermal Underwear Set a foundational layer for winter operations and everyday cold climates.

Color: Black
Size: S

Product information

Stay Ready Outdoors — Return & Refund Policy

Last Updated: January 6, 2026

At Stay Ready Outdoors, we stand behind the quality of our products and want you to be completely satisfied with your purchase. If you need to return an item, please review our policy below.


Returns

We offer a 30-day return policy, meaning you have 30 days from the date you receive your item to request a return.


Return Eligibility

To qualify for a return, your item must be in like-new condition, meeting the following criteria:

  • Unworn, unwashed, and with all original tags and stickers still attached.

  • Free of any scents like perfume, cologne, or smoke.

  • Free of any marks, stains, or pet hair.

  • In its original packaging, including all accessories.

  • Must include proof of purchase (receipt or order number).


How to Start a Return

To initiate a return, email us at info@stayreadyoutdoors.com with your order details. Once approved, you’ll receive return instructions and a prepaid shipping label. The cost of return shipping will be deducted from your final refund.

Important: Items sent back without prior approval will not be accepted.

Return Address:
Stay Ready Outdoors
ATTN: Returns
15236 Las Flores Ave
La Mirada, CA 90638


Damaged, Defective, or Incorrect Items

Please inspect your order upon arrival. If your item is damaged, defective, or incorrect, contact us at info@stayreadyoutdoors.com within 7 days so we can evaluate and resolve the issue promptly.


Non-Returnable Items & Exceptions

Some items are non-returnable, including:

  • Briefs (due to hygiene reasons)

  • Sale items (these sales are final)

  • Gift cards

  • Engraved or customized items

  • Perishable goods (e.g., food)

  • Personal care items (e.g., hygiene or beauty products)

  • Hazardous materials (e.g., flammable liquids or gases)


Food or Drink Products – All Sales Final

Due to the nature of long-term food storage, all sales on food or drink products are final. We do not accept returns or exchanges on food or drink products for any reason including incorrect order, change of mind, or shipping delays. Replacements will only be issued in the event of a verified manufacturing defect or shipping damage, which must be reported within 5 days of delivery with supporting photo documentation.


Products Fulfilled via Shopify Collective

Some items sold by Stay Ready Outdoors are fulfilled by third-party vendors through Shopify Collective. These items follow slightly different return procedures:

  • Return Window – Returns must be initiated within 30 days of the purchase date.

  • Who Handles the Return – Returns and exchanges for these products are handled directly by the business from which the product originated. However, please do not hesitate to contact Stay Ready Outdoors at info@stayreadyoutdoors.com if you need help facilitating a return or exchange — we’re happy to assist.

  • Customer Responsibility for Shipping Costs – Shipping cost responsibility for returns and exchanges varies by vendor. Some vendors offer free returns or exchanges, while others may require customers to pay return shipping.

  • Size Exchanges – If a return is for a size exchange only, the replacement item will be shipped back to the customer once the original is received and inspected, following the vendor’s policy.

  • Refunds – If a refund is due after inspection, the originating business will notify Stay Ready Outdoors and the refund will be processed back to the customer’s original payment method.

  • Price Changes – Prices for products fulfilled via Shopify Collective are subject to change without notice.

Vendor-Specific Note:

  • The Buffalo Wool Company – Items fulfilled by The Buffalo Wool Company through Shopify Collective follow the same return procedures listed above. Customers are responsible for the cost of shipping items back for return or exchange.

All other eligibility requirements and non-returnable item restrictions in our standard policy still apply unless otherwise stated above.


Exchanges

The fastest way to exchange an item is to initiate a return for the original item and, once the return is accepted, place a new, separate order for the item you want.


European Union Customers – 14-Day Cooling-Off Period

If your order was shipped to the European Union, you have the right to cancel or return it within 14 days of delivery, for any reason. To be eligible, items must be unused, with original tags and packaging, and include proof of purchase.


Refunds

Once we receive and inspect your return, we will notify you of its approval. If approved, we will issue a refund to your original payment method within 10 business days, less the cost of return shipping.

Please Note:

  • It may take additional time for your bank or credit card company to process and post the refund.

  • If you haven’t received your refund within 15 business days of our approval, please contact us at info@stayreadyoutdoors.com.


Need Help?

If you have any questions about your return or refund, we’re here to help:

📧 Email: info@stayreadyoutdoors.com

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