Ski Socks UphillSport Ouna 4-layer Merino Wool Compression Ski Socks Side Green Grey
Ski Socks UphillSport Ouna 4-layer Merino Wool Compression Ski Socks Front Green Grey
Ski Socks UphillSport Ouna 4-layer Merino Wool Compression Ski Socks Side Green Grey
Ski Socks UphillSport Ouna 4-layer Merino Wool Compression Ski Socks Side Green Grey
Ski Socks UphillSport Ouna 4-layer Merino Wool Compression Ski Socks Side Green Orange
Ski Socks UphillSport Ouna 4-layer Merino Wool Compression Ski Socks Front Green Orange

Ski Socks I Ouna Alpine 4-layer Socks With Compression I UphillSport

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✅ 4 Layer sole keeps feet warm and dry
✅ Thin shaft with extra compression - fits your tight boot with blood circulation boost
✅ Fitted heal and grip on arch provides good support
✅ 58% Merino Wool, 29 % Polyamide, 10 % Polypropylene
✅ Made in Finland and tested for cold in the Arctic
✅ Thermal rating 5 out of five
✅ Thickness medium 2 out of three

Ski Socks I Alpine Ski 4-layer Compression M5 with Merino 

Stay warm and comfortable with our thermal socks. Featuring a 4-layer sole that efficiently wicks moisture and traps heat, ensuring dryness and warmth, even in freezing conditions.

These compression socks are designed with a compression fit, the thin shaft promotes healthy blood circulation, reduces foot fatigue, and ensures a secure fit inside tight ski boots. The fitted heel and arch grip prevent shifting and enhance support.

Key Benefits

✅ Cushioning & Support: Featuring a four-layer sole for superior warmth and cushioning inside ski boots
✅ Temperature Regulation & Breathability: Keeps feet cool during activity and warm at rest for optimal comfort
✅ Antimicrobial Technology: Resists odour buildup, ensuring long-lasting freshness even after extended wear
✅ Moisture-Wicking: Effectively wicks sweat to keep feet dry all day, preventing clamminess and blisters
✅ Targeted Compression: Thin shaft with enhanced compression for a secure fit in tight boots and improved circulation
✅ Comfort & Fit: Fitted heel and arch grip provide excellent support while reducing friction and hot spots

Composition

  • 58% Merino wool NATIVA
  • 29% Polyamide
  • 10% Polypropylene
  • 3% Elastane

Pair weight 84 grams. 


  • 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 Socks

Why do pro skiers swear by merino wool socks? Hint: It’s NOT just the warmth…

There’s more to merino wool than meets the eye. Pro skiers trust UphillSport socks because they combine superior warmth with blister resistance, odour control, and a perfect fit that keeps you comfortable through every run. Experience why athletes refuse to hit the slopes without them—your feet will thank you.

Buy Now

Ski all day with ZERO blisters. Here’s the sock technology EVERY adventurer needs!

Say goodbye to sore, blistered feet! UphillSport advanced merino wool blend features seamless construction and targeted cushioning that protect your feet in all the right places. Wherever your adventure takes you—skiing, snowboarding—the sock designed to keep you moving comfortably is here.

Tired of FREEZING feet on the slopes? Discover the sock that outperforms ANY winter gear!

Don’t let cold feet ruin your adventure! UphillSport merino wool ski socks are engineered to keep your toes warm and cosy, no matter how low the temperature drops. Say goodbye to numb toes and hello to all-day comfort with natural breathability and moisture management that outperforms any winter gear on the market.

Feel the difference in blood flow with socks that fit like a second skin on the mountain.

When every step counts, comfort and circulation matter. UphillSport merino wool ski socks offer an anatomically designed fit that feels like a second skin, improving blood flow and reducing fatigue during long mountain days. Experience enhanced performance without sacrificing warmth or comfort.

High Performance Technical Socks

Unique Multi-layer Structiure

UphillSport 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.

Got Questions? We've Got You.

Yes, UphillSport has proudly received the prestigious Scandinavian Innovation Award for its groundbreaking Repo sock. Designed with cutting-edge technology and crafted from high-quality merino wool, the Repo sock sets a new standard in comfort, durability, and performance. Engineered to excel in even the most demanding environments, it combines superior moisture management, temperature regulation, and ergonomic fit to keep your feet comfortable all day long. This accolade recognizes UphillSport’s commitment to innovation and excellence, solidifying the Repo sock as a top choice for athletes, outdoor enthusiasts, and professionals alike.

Yes, our socks have been rigorously military tested and proudly selected above many competitors. UphillSport won tenders to supply socks to the Danish and Finnish militaries as well as the Belgian Marines. Our selection was the result of comprehensive laboratory and demanding field tests, proving the superior quality, unparalleled durability, and advanced technical design of our Merino wool socks—specifically engineered to meet the toughest military standards. Designed for comfort, performance, and resilience in extreme conditions, our socks have earned the trust of armed forces around the world. To date, we have supplied over one million pairs to military personnel, a true testament to their reliability when it matters most.

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

Unfortunately, socks made entirely from pure wool tend to have a limited lifespan due to wool’s natural properties. While wool is prized for its warmth, softness, and moisture-wicking abilities, it inherently lacks strong abrasion and wear resistance. This means that when subjected to the constant friction and pressure experienced during daily wear, pure wool socks can quickly become worn out, develop holes, or lose their shape.

Given the heavy wear and tear socks endure, manufacturers often blend wool with synthetic fibers to enhance durability without sacrificing the natural benefits of wool. One commonly used synthetic fiber is polyamide (also known as nylon), which provides excellent strength, elasticity, and resistance to abrasion. By incorporating polyamide into the fabric, socks become more resilient and retain their form and performance over extended periods.

In fact, the wool we use for our socks is already blended with 20% polyamide. This deliberate combination improves the durability of the wool yarn, ensuring that the socks maintain their softness and comfort while significantly extending their wear life. As a result, our wool-polyamide blend offers the perfect balance of natural warmth and toughness, making the socks both comfortable and long-lasting.

It is difficult to determine the lifespan of a sock, as it depends on many individual factors such as the intended use, the sock materials and its structure. For example, the lifespan of alpaca wool socks in everyday use is very short, as alpaca wool is not very resistant to abrasion and wear. Therefore, it is best suited for use as sleeping and lounge socks. On the other hand, socks with more synthetic fibres or, for example, a multi-layered structure bottom can last for years.

Still, it is not possible to draw any precise line as to which material will last a certain amount of time for each person and which will not. For example, the shoes worn with the socks,
the roughness of the soles of the feet, the fit of the sock and the surfaces on which the socks are walked on also contribute to the durability and lifespan of the sock. You can learn more about the materials in our online store's material information. We have also tried to describe the product's features and structures as accurately and as comprehensively as possible on our product pages.

The frequency with which socks need to be washed is highly individual and varies depending on several factors. One of the primary influences is the type of footwear worn; for example, closed shoes that restrict airflow may cause feet to sweat more, necessitating more frequent washing. Additionally, the natural tendency of a person’s feet to sweat plays a significant role. Individuals with higher levels of perspiration will generally need to wash their socks more often to maintain hygiene and comfort.

The material of the socks is another important consideration. Socks made from breathable, moisture-wicking fibers tend to stay fresher for longer periods. For instance, merino wool socks possess natural antimicrobial properties and excellent moisture management, which means they do not need to be washed after every use. Simply airing them out between wears is often sufficient to keep them fresh and odor-free. In contrast, synthetic or cotton socks may require more frequent washing, as they can retain moisture and odors more readily.

Ultimately, the decision on how often to wash socks should be guided by individual comfort, activity level, and the specific characteristics of both the footwear and sock materials.

Sock sizes measured “relaxed” can vary significantly, even among socks labeled the same size. Factors such as material composition, construction, and elasticity all influence these variations. However, socks of the same size generally have the same stretch capacity, meaning they will extend to the same size when worn, despite differing measurements when unstretched.

Therefore, there is usually no need to worry about size differences. But if a sock feels completely wrong on your foot, it's a good idea to check the inside of the sock leg to confirm that the knitted size matches the label.

Additionally, we recommend washing our wool-based and ski socks at least once before use. This initial wash helps the socks adjust to their proper size and shape, ensuring optimal fit and comfort.

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.