UphillSport Combat Heavy Duty Merino Wool Work Socks Side Black
A person hiking on a rocky mountain peak, viewed from behind, wearing black shorts, black combat tactical socks with white lettering, and tan lace-up boots. The background shows blurred green mountain ridges and a hazy sky.
A person hiking on rocky mountains wearing black athletic shorts, black combat tactical socks with white branding, and brown hiking boots, shown from behind.
A man stands on a rocky mountain ridge wearing a dark knit beanie, black long-sleeve top, black shorts, and brown hiking boots with black combat tactical socks, looking out over layered green mountain ranges under a pale sky.
Arctic Combat Socks being held by man in video.
UphillSport Combat Heavy Duty Merino Wool Work Socks Front Black
UphillSport Combat Heavy Duty Merino Wool Work Socks Side Green
UphillSport Combat Heavy Duty Merino Wool Work Socks Front Green
 UphillSport Combat Heavy Duty Merino Wool Work Socks Side Khaki
UphillSport Combat Heavy Duty Merino Wool Work Socks Front Khaki

Combat Tactical Socks I 3-Layer Merino With Duratech I UphillSport

Regular price$33.43
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  • iDEAL Wero
  • Combat Tactical Socks Heavy Duty ideal for tough outdoor work
  • Finnish military combat sock - over 1 million pairs sold
  • Thermal Rating 4 of 5 I Thickness 1 of 3
  • Crew length I breathable I multi-layer I seamless toe I fitting I 48% Merino
  • Made in Finland and tested in the Arctic
  • 3 layer structure - Keeps feet warm and dry
  • Thin multi layer structure - Warm and durable
  • Elastic sport shaft - Stays up
  • 48 % Merino wool, NATIVA, 31 % Polyamide, 20 % Polypropylene, siltex

Combat Tactical Socks I 3-Layer Duratech L4 with Merino

  • Finnish military combat sock - over 1 million pairs sold
  • Thermal Rating 4 of 5 I Thickness 1 of 3
  • Crew length I breathable I multi-layer I seamless toe I fitting I 48% Merino

These combat tactical socks are ideal for tradies, construction workers, farmers, and miners and trades that wear boots. Made with a 3-layer Duratech system and premium merino wool, they keep your feet warm, dry, and protected no matter the conditions.

UphillSport Tactical collection is based on experience with the Finnish Army with more than one million pairs purchased by them. Co-operation in development and understanding of field demands make our tactical socks the best sock, Weather conditions in Finland are extremely challenging from -52 to +35 degrees Celsius which creates high performance demand to operate effectively in all conditions. 

Key Benefits

  • Reinforced durability with extra cushioning for heavy-duty use
  • Regulated temperature and breathability for optimal comfort
  • Antimicrobial properties to resist odour build-up
  • Moisture-wicking technology to keep feet dry all day
  • Fit-and-stay-up design for uninterrupted comfort

Materials

  • 48% Merino wool, NATIVA
  • 31% Polyamide
  • 20% Polypropylene, siltex
  • 1% Elastane

Pair weight 53 grams

These socks are manufactred by UphillSport in Finland who are renowned for it's high performance socks specifically engineered for extreme outdoor conditions.

  • Wool is a warm and breathable material.
  • Sheep wool has excellent performance characteristics, as it breathes and insulates heat well.
  • Self-renewing and biodegradable, natural fibre absorbs moisture well, does not wrinkle and straightens quickly.
  • For wool products, airing rather than washing is sometimes sufficient.
  • Wool is naturally fire-retardant, highly resistant to bacteria and mould.

UphillSport® is an outdoor lifestyle brand originating from Finland, renowned for its high-performance socks specifically engineered for extreme outdoor conditions. Rooted in the Tampere region—an area with over 200 years of rich textile manufacturing heritage—UphillSport benefits from unparalleled craftsmanship and innovation in textile production.

The brand is created and produced by Sukkamestarit Ltd, a Finnish company with a long-standing history in sock manufacturing since 1996. Leveraging decades of expertise, Sukkamestarit has honed advanced techniques to produce premium performance socks capable of withstanding the harsh, cold, and moist sub-Arctic climates typical of northern Finland.

Launched in 2014, the UphillSport® brand combines traditional textile heritage with cutting-edge technology, focusing on multi-layer sock systems that maximize breathability, moisture management, durability, and warmth. Each pair of UphillSport socks undergoes rigorous Arctic testing to ensure reliability in extreme weather conditions, making them a trusted choice for outdoor enthusiasts, athletes, and professionals alike.

UphillSport's product range includes specialized socks for hiking, running, skiing, fishing, and workwear, designed to provide unparalleled comfort and protection on any adventure—from Arctic expeditions to rugged Australian treks. The brand’s commitment to innovation and quality is further exemplified by its military-grade performance credentials, such as being worn during the Netherlands Marine Corps’ world record speed march under freezing temperatures.

Today, UphillSport stands as a premium sock brand that seamlessly blends Finnish tradition with modern technological innovation, dedicated to delivering durable, multi-layered socks that keep feet dry, warm, and supported no matter the challenge.

UphillSport® has revolutionized outdoor and performance socks through their pioneering Multi-layer System technology. At the heart of their innovation is a carefully engineered technical multilayer structure that allows the creation of socks that are remarkably warm while maintaining a slim and lightweight profile. Unlike traditional thick socks that rely solely on bulk to provide insulation, UphillSport® leverages the unique properties of different materials layered strategically to optimize performance.

Each layer in the Multi-layer System serves a specific function — from enhancing breathability and managing moisture, to increasing durability and delivering superior warmth in harsh conditions. This approach ensures that UphillSport® socks effectively regulate temperature and keep feet dry, even during intense physical activities or in extreme outdoor environments.

Ideal for active outdoor enthusiasts and performance athletes alike, these socks provide comfort and protection without compromising mobility or fit. Whether hiking, skiing, or engaged in tactical work, UphillSport® socks offer the technical advantages needed for high-performance demands.

Committed to continuous innovation, UphillSport® combines advanced manufacturing expertise with sustainable practices, ensuring their products are not only technically advanced but also environmentally responsible. This dedication to quality and sustainability solidifies UphillSport® as a leader in the development of next-generation outdoor performance socks.

Care instructions:

  • pre-wash merino wool socks before use
  • for merino socks, airing alone is often sufficient
  • careful washing at a maximum temperature of 40 degrees Celsius
  • use as light a spin as possible
  • the use of a wash bag saves wear and tear
  • do not use detergents containing rinsing agents or bleaching agents
  • do not use a tumble dryer or drying programmes
  • please note that merino wool socks will shrink in the wash, please shape/stretch the socks while damp to restore the original size
  • use a lint remover - merino wool socks are easily linted by rubbing

UphillSport Performance Socks

Never Underestimate The Power of Great Socks

Socks aren’t just an accessory — in the outdoors, they’re the difference between pain and triumph. UphillSport outdoor socks deliver blister-free comfort, moisture control, and durability to power every step on your adventure.

High Performance Technical Socks

Technical socks with Unique Multi-layer Structiure

UphillSport technical socks patented multi-layer structure specifically designed for sub Arctic conditions. Made in Finland and designed to perform in extreme cold conditions. Military tested and with more than one million pairs sold to the Finnish and Danish military. Buy with confidence.

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NATIVA WOOL

NATIVA Certified Farms

Our wool is sourced from farms committed to ethical practices. It’s mulesing-free, ensuring cruelty-free comfort. Experience Merino wool—the natural, sustainable choice for your next adventure.

Got Questions? Weve Got You Covered.

UphillSport® is an innovative outdoor lifestyle brand from, Finland. The Tampere area in Finland has over 200 years of quality textile manufacturing know-how. Sukkamestarit Ltd is the company behind UphillSport® brand, manufacturing socks in Finland since 1996. They have a long history and know-how for manufacturing high quality performance socks for cold and moist sub Arctic conditions. UphillSport® brand was born in 2014.

The UphillSport® brand is founded on the innovation of the Multi-layer system. By using our Multi-layer system, we can make a warm sock, however thin in thickness. Different materials have unique properties and functions that can be beneficial with the Multi-layer system. The main benefits are breathability, moisture control, durability and warmth. UphillSport® socks are ideal for active outdoor and performance sports people.
UphillSport® is passionately committed to continue their technical innovations and further develop with their high-quality manufacturing know-how along with sustainable way.

1. ANIMAL WELLFARE
• Behaviour, animal handling and health, feeding, sheep breeding
• NATIVA Protocol educates and help farms for better wellfare
MULESING METHOD IS PROHIBITED
2. SAVE WATER
• Wool processing uses only rain water, after the process water is cleaned and 90% is
released back to nature circulation
• Biodegradable washing process
• Chlorine free process for wool superwash
3. COMMITMENT TO WHOLE SUPPLY CHAIN
• Long term supplier relationships. Orders for suppliers from 6-24 months for stable
demand of raw materials. Transparency helps with investments and planning
• Care of Suppliers employees as our own
4. COMMITMENT TO CUSTOMERS
• Collection in stock service minimizes over purchasing. Continues collections avoid end of
lines
• Durability saves raw material, energy, environment and prevent risks
• Together with our farms and NATIVATM we can commit to availability for the merino wool