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Published: 3/16/2026🚶 Trekking|👕 4F Collections 
Technologies in trekking clothing – the new 4F spring-summer 2026 collection
There are places where you rediscover balance. Where breathing becomes deeper and thoughts become simpler. The new 4F trekking collection for women and men was created for those who want more – more space, more adventures and more confidence in every situation. It is a line designed with inspiration from summer mountain expeditions, changing weather and the need for reliable protection. It combines modern design with advanced technologies that truly support exploration.
Table of contents:
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🏔️ The 4F Spring–Summer 2026 trekking collection was designed for changing mountain weather and combines modern design with technologies that support comfort, protection and mobility during outdoor adventures.
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🧻 The three-layer clothing system (base layer, insulating layer, outer layer) helps regulate body temperature, wick moisture away and protect against wind and rain in dynamic conditions.
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🌧️ NeoDry membrane + 3L hardshell + DWR PFC-FREE coating ensure waterproofness, wind protection and breathability, while taped seams, waterproof zippers and ventilation increase functionality in the field.
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🔥 Primaloft® insulation (Black, Silver, Gold, Rise) offers lightweight thermal insulation similar to down, keeping you warm even in damp conditions while maintaining good breathability.
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🧗 Elastic 4WAY stretch fabrics, quick-dry finishes and lightweight packable constructions increase freedom of movement, comfort during activity and make trekking gear easier to pack.
In short:
Nature-inspired color palette
The color palette of the collection reflects the landscape of mountains and forest trails:
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lime – energetic, joyful, increasing visibility and freshness,
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ocean blue – deep, inspired by water and the sky,
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turquoise – a symbol of adventure and exploration,
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energetic coral – a distinctive outdoor accent,
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khaki – a classic trekking color,
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natural earth tones – beige, graphite and brown shades harmonizing with the surroundings.
It is a combination of functionality and aesthetics – the colors not only blend into nature but also improve visibility in the terrain.
Layering concept – a system that works with you
The collection was created based on the concept of three layers:
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Base layer: worn directly on the body – responsible for moisture wicking and thermal comfort.
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Insulating layer: provides thermal insulation while maintaining breathability.
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Protective (outer) layer: protects against wind, rain and demanding weather conditions.
This system allows clothing to adapt to dynamically changing mountain weather.
Check out more 4F technologies!
Technologies – the foundation of the trekking collection
Our new 4F trekking collection is based on materials of the highest technical quality and advanced finishes.
NEODRY MEMBRANE + HARDSHELL 3L + DWR PFC-FREE
In the outer layer we used a 3-layer hardshell laminate with a NeoDry membrane that:
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provides high waterproofness,
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protects against wind,
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maintains breathability,
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is lightweight and easy to pack.
The material is coated with DWR PFC-FREE, which limits water absorption of the outer fabric and is also a more environmentally friendly solution.
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all seams are taped,
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waterproof zippers were added,
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an integrated ventilation system allows temperature regulation during activity.
PRIMALOFT® – INTELLIGENT INSULATION
In insulating layers we used fillings:
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Primaloft® Black
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Primaloft® Silver
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Primaloft® Gold
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Primaloft® Rise
These are polyester microfibers with properties similar to natural down:
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they provide warmth similar to down,
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are lightweight and compact,
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resistant to moisture,
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breathable,
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support moisture wicking,
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elastic and soft.
Thanks to them jackets and vests maintain thermal comfort even in changing conditions.
4WAY – FULL FREEDOM OF MOVEMENT
Bottom garments (trekking pants, shorts) are made from materials with a 4WAY stretch structure, meaning elasticity in four directions.
Result:
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maximum mobility,
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comfort during ascents and steep descents,
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no restriction of movement.
QUICK DRY FINISHING
A finish that accelerates moisture absorption from the skin surface and ensures dryness and comfort during intense activity.
SKIN FINISHING (4F SKIN)
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flat seams minimizing chafing,
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4F Dry properties,
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comfort in the base layer.
BAMBOO FIBER
It has natural thermoregulating properties and quickly wicks moisture away. It is pleasant on the skin and suitable for long demanding expeditions.
ULTRA LIGHT + PACKABLE
Lightness and packability are key during trekking trips. The garments can be easily folded and stored in a backpack without unnecessary load.
PADDING
Modern insulating fillings ensure even heat distribution and a lightweight construction.
Collection elements
The collection includes:
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trekking jackets – 3L hardshell with NeoDry membrane,
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jackets with Primaloft® insulation,
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trekking vests,
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trekking pants 4WAY (also available in 4WAY + RIP STOP version),
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models with reinforcements in abrasion-prone areas,
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trekking shorts and technical skirts.
Each model includes functional details:
adjustable cuffs, hoods, zip pockets, reinforced knees and shoulders.
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Quality and materials
In the collection we used:
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polyamide and elastane,
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recycled polyester,
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advanced technical laminates.
The materials were selected to provide protection in demanding weather conditions while maintaining lightness and durability.
IMG https://4fstore.com/sports/trekking.html
Design that goes hand in hand with function
The sporty modern aesthetic allows free combination of individual elements and adapting the outfit to rapidly changing mountain weather. It is a complementary collection – each element matches the others.
For those who want more
The new 4F trekking collection is designed for women and men who are not afraid of challenges. For those who know that true strength is born in the silence of the mountains and in the breath carried by the wind.
Hashtags that best describe the collection:
#exploremore #nature #advanture #trekking #4F #mountainexploring #happines
Because every expedition begins with the first step. And technology will take care of the rest.
Quality and materials
In the collection we used:
-
polyamide and elastane,
-
recycled polyester,
-
advanced technical laminates.
The materials were selected to provide protection in demanding weather conditions while maintaining lightness and durability.
Design that goes hand in hand with function
The sporty modern aesthetic allows free combination of individual elements and adapting the outfit to rapidly changing mountain weather. It is a complementary collection – each element matches the others.
For those who want more
The new 4F trekking collection is designed for women and men who are not afraid of challenges. For those who know that true strength is born in the silence of the mountains and in the breath carried by the wind.
Hashtags that best describe the collection:
#exploremore #nature #advanture #trekking #4F #mountainexploring #happines
Because every expedition begins with the first step. And technology will take care of the rest. 🏔️
FAQ – Frequently asked questions
1. How does the three-layer system work in trekking clothing?
2. Is the NeoDry membrane waterproof and breathable?
3. What makes Primaloft insulation special in outdoor clothing?
4. Why are 4WAY stretch materials important in trekking clothing?
5. Is 4F trekking clothing suitable for long mountain expeditions?
4F Editorial Team
The 4F editorial team is a group of experts who live and breathe sports and value an active lifestyle. Drawing on the experience of the 4F brand, we show that exercise is a source of energy, balance, and well-being. We provide reliable training advice, follow trends in sports fashion, and support our readers in discovering their motivation to take action.
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