Supair Radical 4 Back Country Harness

Supair Radical 4 Back Country Harness: Featherlight Freedom for Bold Adventures

Engineered for Hike-and-Fly, Perfected for Backcountry Missions

The Supair Radical 4 Back Country Harness isn’t just a harness—it’s your gateway to uncharted skies. Specifically designed with minimalist adventurers in mind, this ultralight gear solution balances freedom of movement with high-altitude functionality. Whether you’re chasing remote thermals or carving out weekend hike-and-fly loops, it offers unmatched versatility.

Moreover, Supair has meticulously upgraded the Radical 4, blending intuitive design with a modular approach. As a result, you get a harness that adapts as fluidly as you do—from launching off ridges to landing deep in the valley.

Supair Radical 4 Back Minimal Weight, Maximum Potential

Built for Lightweight Exploration

Since every gram counts in the backcountry, Supair built the Radical 4 to be as light as possible without compromising performance. Weighing in at just 920g in its base configuration, it allows for swift ascents and easy packing. Furthermore, when paired with the optional airbag module, it transforms into a more comprehensive hike-and-fly setup.

Packable and Streamlined

With a slim profile and compact volume, this harness is ideal for tight rucksack fits. Consequently, it suits alpine expeditions and vol-biv journeys alike. Because weight and volume often determine the scope of your adventure, the Radical 4 opens doors to bigger, bolder trips.

Additionally, packing the harness becomes effortless. Therefore, you can shift focus from logistics to the joy of flying.

Supair Radical 4 Back Dynamic Comfort in Flight

Ergonomic Support in Motion

Although it features a feathery build, the Radical 4 offers a surprisingly supportive feel. Not only does the harness cradle your body during flight, but it also reduces fatigue while maximizing control. Adjustable leg loops and shoulder straps ensure a custom fit. Moreover, the dynamic geometry translates to sharp feedback from your wing.

Modular Back Protector and Airbag Option

Undoubtedly, safety remains a priority. That’s why Supair offers a modular airbag and back protector system for the Radical 4. When added, it significantly enhances impact absorption and protection. Because this feature is optional, you have the freedom to dial in your gear according to each mission’s risk profile.

Rugged and Ready for Rough Terrain

Tough Enough for Technical Conditions

Crafted from robust materials, the Radical 4 endures abrasive environments and rugged launch sites. Additionally, its simple yet reliable strap system ensures quick and hassle-free setup—even in windy or high-stress conditions.

Furthermore, its durability extends the product’s lifespan. Hence, you benefit from long-term value and dependable performance.

Built-In Accessories for Utility

Every detail has been thoughtfully integrated. From gear loops to secure pockets, you’ll have quick access to your essentials mid-flight or mid-climb. Moreover, the modular pod system allows pilots to tailor the Radical 4’s performance with add-ons like leg covers for warmth or streamlined pods for aerodynamics.

Therefore, your harness adapts not just to terrain—but to personal preference and mission goals.

Key Features of the Supair Radical 4 Back Country Harness

✅ Ultralight construction – perfect for hike-and-fly and backcountry use
✅ Modular airbag compatibility – optional protection when you need it
✅ Compact fold – ideal for space-conscious packing
✅ Adjustable geometry – ensures a custom, responsive fit
✅ Minimalist design – easy to use, easy to carry
✅ Rugged fabric – withstands tough terrain and repeated use
✅ Optional pod system – boosts comfort and aerodynamic profile
✅ Integrated gear loops – for smooth transitions and organization

Who Is the Radical 4 Built For?

The Passionate Hike-and-Fly Explorer

If you’re someone who values lightweight efficiency and backcountry access, the Radical 4 speaks your language. It’s crafted for athletes, alpine adventurers, and purists seeking refined simplicity.

Furthermore, its straightforward setup makes it perfect for spontaneous flights. Therefore, you spend more time in the air and less time on the ground.

Intermediate and Advanced Pilots Demanding Freedom

Although minimalist, this harness doesn’t compromise on function. That’s why it appeals to experienced pilots looking for performance and freedom. Also, its flexibility makes it an ideal second harness for traveling light or flying in remote destinations.

Go Farther, Fly Freer

Ultimately, the Supair Radical 4 Back Country Harness delivers uncompromising freedom. Whether you’re climbing steep scree slopes or floating above remote valleys, it offers the comfort, flexibility, and simplicity needed to stay focused on what matters most—the flight. So, if your goals involve soaring lighter and adventuring deeper, this harness is ready to lead the way.

Because the spirit of flight starts with simplicity, the Radical 4 keeps only what truly matters.

 

Technical Data

Practice

• ON-SITE FLIGHT
• HIKE AND FLY

Frequency

• OCCASIONAL
• REGULAR

Level

• NOVICE
• INTERMEDIATE
• SEASONED