Flow+ Black - 5-Toe Knee High Socks

Name: Flow+ Black - 5-Toe Knee High Socks
Brand: Ortles Run
SKU: ESSENTIAL_S
Rating: 4.6 (50 reviews)

€29,99 EUR

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Size S 36-39.5 M 40-44.5 L 45-48

Height At the knee

What does COMPRESSIVE mean?

Compressive means that the sock applies targeted, graduated pressure, designed to support circulation and reduce fatigue.

In the Flow+ model, the compression is more structured: 25 mmHg at the ankle, which gradually decreases to 20 mmHg at the calf.

This pressure helps the soleus muscle – often called the "second heart" – to pump blood upwards more effectively, reducing swelling, heaviness, and discomfort after many hours on your feet, traveling, or during sports.

Additionally, toe separation improves support, balance, and micro-circulation even in the lowest part of the foot.

What does CUSHION mean?

Cushion refers to a reinforcement in the weave, concentrated mainly on the sole of the foot, which makes the sock softer and more cushioned, increasing comfort and reducing impact during walking or running.

How do I choose the size?

Rely on the selectors on the product page (example: Size S - EU 36-40).

If your shoe size is close to the next size up, order the correct size.

Example: if you wear a 40, order "Size S - EU 36-40"

Difference between the various socks

Ortles Run 5-toe socks are designed to adapt perfectly to your lifestyle and your activities. Whether you are walking in the city, running on mountain trails, or tackling an ultramarathon, there is a height just for you.

No-Show Socks

Invisible comfort for every day.

These socks disappear into your shoe, but you’ll definitely feel the comfort. They are ideal for:

Days in the city or at work
Light walks
Gym workouts

👉 If you want to benefit from the comfort of 5 toes without looking for race-level performance, this is your daily choice.

1/4 Crew (Above the Ankle)

Smart protection for those on the move.

A perfect middle ground: the sock comes up just above the ankle to keep dust, small stones, or debris from getting in during activity.
Perfect for:

Road running
Trail running
Intense workouts
Long walks with low-cut shoes

👉 If you are always on the move and want performance and protection, this height is the right balance.

High

Maximum protection, maximum performance.

These are our “workhorse” socks. High, durable, and ready for anything. Designed for:

Long, technical treks with hiking boots
Ultramarathons on road or mountain trails
Difficult terrain and challenging conditions

👉 When you want real performance, reliability, and protection up to the calf.

Compression

Energy and relief that lasts.

Our 5-toe compression socks are designed for those who really tackle infinite distances. Beyond the support of graduated compression, they include a cushioning layer under the sole of the foot that reduces impact and provides relief even after many hours of use.

Perfect for:

Extreme trekking with rigid boots
Ultramarathons on road and mountain trails
Ultra-long duration activities and significant elevation gains

👉 If you are looking for maximum support and want to go further with less fatigue, these are the socks that will accompany you to the very last step.

Knee-High

Total support from toe to knee.

Our high 5-toe socks with graduated compression fully wrap the calf, supporting circulation to reduce swelling, fatigue, and heaviness. To better meet the different needs of climate and physical exertion, we have developed two dedicated versions:

1. Flow+ (4-Season Fabric)

Balanced compression (15-20 mmHg) & All-year-round versatility.

The benchmark model for those seeking constant but extremely comfortable support, ideal to wear for many hours without a feeling of constriction.

Compression: 15-20 mmHg (medium graduated), balanced to stimulate daily circulation and relieve leg fatigue.
Fabric: 4-season structure, soft and modular, perfect for any time of year.
Perfect for: Prolonged standing at work, walking, long flights/car trips, and continuous daily use.

2. Air Flow (Super-Light Fabric)

Intense compression (25-30 mmHg) & Extreme breathability for hot weather.

Designed for the most challenging conditions, this version combines higher compression push with an ultra-lightweight fabric structure.

Compression: 25-30 mmHg (strong graduated), intended for those who need maximum vascular and muscular support during exertion.
Fabric: Super light and highly breathable, designed to dissipate heat quickly and prevent sweat buildup.
Perfect for: High-intensity sports, running and trekking in summer months, or for those who suffer from significant swelling and need firm support.

💡 Which one to choose?

👉 Choose Flow+ if you want a versatile 4-season sock with medium compression (15-20 mmHg) for every day.
👉 Choose Air Flow if you are looking for more vigorous compression (25-30 mmHg) and an ultra-cool fabric designed for heat and intense activity.

Anti-Slip

Stability "glued" to the ground and maximum grip.

These socks integrate premium silicone grip under the sole of the foot to ensure superior traction. They offer you all the freedom of walking barefoot, encouraging the natural spreading of the toes, but with total security against slipping.

Perfect for:

Pilates, yoga, and gym workouts
Daily indoor use on hardwood or tile floors
Those seeking hygienic protection and grip in studios or communal areas

👉 If you want to improve your balance and challenge your limits indoors with a secure grip, the Pro Grip socks are your silent allies.

Merino Wool

The perfect balance between nature and technology.

The socks are made with a composition of: 50% Merino, 30% Nylon, 15% Acrylic, 5% Spandex.

We studied this specific blend to overcome the limitations of pure wool. 50% Merino Wool guarantees the natural thermoregulation and softness you are looking for, but it is the technical component that makes the difference in durability. The Nylon creates a resistant armor that prevents premature holes in the heel and toes, while the elasticity of the Acrylic and Spandex allows the sock to wrap every single toe without slipping or creating annoying folds.

Year-round protection

They are born with a closed structure without mesh to offer maximum protection from debris and cold. However, thanks to Merino’s unique ability to manage moisture, they keep the foot dry and healthy even during trekking in milder seasons. A dry foot is a protected foot, from both cold and heat.

Coolmax

Unbeatable freshness and feet that stay dry.

Our socks with Coolmax® technology are the ultimate choice for facing the hottest days and high-intensity workouts. Thanks to the special channeled structure of its technical fibers, this fabric instantly wicks sweat away from the skin, transporting it to the outer layer of the sock for ultra-fast evaporation.

Maximum breathability against heat

The combination of the 5-toe design and Coolmax fiber eliminates moisture accumulation in the spaces between the toes, drastically reducing overheating, discomfort, and the risk of blisters. A lightweight, fresh, and incredibly breathable sock, designed to let your foot breathe even when the asphalt or trails are scorching.

Perfect for:

Road running and trail running in summer
Intense indoor workouts and high-perspiration sessions
Those who struggle with heat and seek constant foot ventilation

👉 If you don’t want high temperatures to slow your pace and you demand a dry, fresh, and protected foot from the first to the last kilometer, this is your summer ally.

Every Ortles Run sock is created to offer you comfort, functionality, and freedom of movement. You choose the height, we’ll take care of the rest.

Here you will find the chart with all the specifications for our socks.

Are they summer or winter ones?

Ortles Run socks are designed for four seasons, with a particular focus on spring, summer, and autumn. This means that:

they offer ideal breathability and moisture management for mild to warm temperatures, ensuring comfort even on long hikes or during sports activities.
they are not technical socks for extreme cold, but they can still be used in winter conditions depending on the intensity of the activity and your tolerance to cold. Our hikers and athletes have tested them in deep snow up to 40 cm without any particular problems.

Practical advice:

If you anticipate prolonged stops at low temperatures or particularly suffer from cold feet, combine them with a pair of heavier thermal socks.
For dynamic activities or fast trekking even in the snow, Ortles Run socks guarantee excellent performance, keeping feet dry and protected.

In summary, Ortles Run socks are an excellent middle ground: versatile all year round, perfect for mid-seasons, and also suitable for harsher climates if combined correctly with appropriate clothing.

What material are they made of?

The socks are made with a composition of:
93% Nylon
5% Spandex
2% Polyester

We have tested these materials as they have proven to be the best for breathability and durability.

Who are they for?

Our five-toe socks originated in the world of trail running, but today they are appreciated by those seeking wellness and comfort every day.

Thanks to the separation of the toes, they promote a more natural posture, improve circulation, and reduce friction and localized pain, even in cases of bunions or Morton's neuroma.

We have tested our models in extreme conditions, on mountain trails and asphalt, to guarantee maximum quality and resistance. But the benefits can be felt in every context:

Walking and hiking
Daily use and standing work
Running and gym workouts

How long do they last?

We tested the socks for over 200 hours of outings on challenging terrains and trails.

Their exceptional durability was demonstrated by their ability to withstand the most extreme conditions without damage.

Reliable and long-lasting, these socks were designed to offer lasting comfort and protection, making them the ideal choice for adventurers seeking the most from their gear.

Tackle any challenge without worrying about your socks.

Do you suffer from swollen legs, foot pain, tingling from neuropathy or plantar fasciitis?

Our five-toe socks improve circulation and support a more natural posture, helping you revive your legs and reduce that heavy, tired feeling.

Compression socks for circulation

Why do I always feel pain?

Every morning should feel like a fresh start – a chance to wake up rested and ready for the day. But many people wake up with pain and discomfort because the body doesn’t truly regenerate during the night.

This happens when blood doesn’t circulate properly in the areas that need it most.

Let’s be honest…
Modern life pushes us harder than ever: long hours, standing or sitting all day, constant stress. Over time, poor circulation leads to swelling, fatigue and persistent discomfort.

Flow+ five-toe socks help counteract these effects by stimulating circulation and improving balance and the natural alignment of the feet.

Graduated compression illustration

The science behind graduated compression – how it works

Our legs contain what many experts call a real “second heart” – the soleus muscle, which helps pump blood back toward the heart.
When circulation is weak, the heart has to work harder, causing fatigue, swelling and discomfort.

Without proper support:
• Gravity pulls blood downward, causing stagnation
• Circulation slows, leading to swelling and pain
• Blood struggles to rise back up to the heart

With Ortles Flow+ graduated compression socks:
• 25 mmHg at the ankle, gradually decreasing to 20 mmHg at the calf
• Support the “second heart” and promote venous return
• Reduce swelling, fatigue and everyday discomfort
• Separated toes improve balance and circulation even in the lowest part of the foot

Flow+ graduated compression zones

The secret behind the Flow+ 3-zone compression system

Unlike regular socks that offer only minimal support, the 3-zone targeted compression technology of Flow+ delivers precise, effective pressure where it matters most.

Why Flow+ compression socks work

Common methods that don’t really solve the problem:

❌ Expensive supplements
Often processed at high temperatures, they lose much of their effectiveness before the body can even absorb them.

❌ Painkillers and medications
They may ease the pain temporarily, but they don’t address the root cause.

❌ Complex exercises and stretching
They can help, but require time and consistency just to see minimal benefits.

❌ Expensive shoes and insoles
Sometimes they even increase stress on feet and legs, making symptoms worse.

❌ Other compression socks
Often poorly designed: they apply the same pressure along the entire leg instead of using true graduated compression.
But gravity pulls blood downward – if the pressure isn’t distributed correctly, blood encounters resistance on the way up, causing stagnation and worsening circulation.

Flow+ five-toe socks are designed to work with gravity, not against it, encouraging a smooth and natural upward blood flow.

Why Flow+ socks work with gravity

Compression that moves with you

Some socks squeeze too tightly, others slide down constantly. Flow+ provide balanced, stable compression that’s supportive without ever feeling restrictive.

Balanced compression: gentle, secure hold that stays in place
Smooth, breathable fabric: keeps your legs feeling fresh and light
Flexible design: adapts to your movement for all-day comfort
Non-slip cuff: stays put without digging in

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BORN FOR ADVENTURE: PERFECT FOR YOUR HIKES AND FOR EVERY DAY

Our socks are designed to accompany you everywhere:

Trekking and long walks (Camino de Santiago, Via Francigena, trails)
Days spent on your feet at work or in the office
Leisure walks
Running and sports activities
Relaxing at home (because your feet deserve a rest!)

Whatever your day looks like, enjoy the freedom of separated toes.

Forget the annoyance of blisters and the feeling of cramped feet. Whether you are tackling a long walk or an intense day at work, the health of your feet is essential for feeling good.

That is why Ortles five-toe socks are the ideal choice for those seeking true comfort: they eliminate skin-on-skin contact, preventing blisters, redness, and calluses between the toes.

Do you want to rediscover the pleasure of walking without a care? This is the solution you have been looking for.

The five-toe design allows the foot to move naturally, improving stability and balance. Furthermore, by separating the toes, we drastically reduce interdigital moisture: this means drier feet, fewer bacteria, and goodbye to unpleasant odors, even after many hours.

Made with high-quality, breathable, and durable technical yarns, our socks are designed to last and fit any footwear, from hiking boots to everyday sneakers.

Treat your feet. Choose the model that suits you best and experience the difference of a natural, pain-free walk right now.