SlingFin Cinder Cone Review: Ultimate Pyramid Tarp for Backcountry Expeditions (2025)

In the world of outdoor gear, few things are as crucial as a reliable shelter, especially when facing extreme conditions. But here's where it gets controversial: not all tents are created equal, and some may fail when you need them the most. Enter the SlingFin Cinder Cone, a tarp that promises to be the ultimate solution for outdoor enthusiasts, especially in the harshest environments.

A Personal Journey to the Perfect Shelter

I, too, have been on a quest for the perfect shelter, and it all started with a pandemic-induced DIY project. I modified my pyramid tarp shelter, adding adjustable tensioners and mid-panel tie-outs, only to realize that my sewing skills were not up to par. But my efforts were not in vain, as they led me to discover the Cinder Cone.

When the SlingFin Cinder Cone Pyramid Tent arrived, I was impressed. It had everything I had envisioned and more. I put it to the test in various environments, from the rugged Patagonia to the remote Arctic Circle, and it excelled in all of them. The Cinder Cone is a true all-rounder, offering a generous size, exceptional ventilation, and resilience against the harshest storms.

A Shelter for All Seasons

The Cinder Cone is a versatile basecamp and expedition shelter, weighing just 2 lbs. and 7.4 oz. It can accommodate four people and provides a spacious 81 sq. ft. floor area. Its standout features include a super-versatile setup, multiple ventilation ports, rugged construction using nylon 66 and ALUULA Durlyte, and a small packed size. However, it does require seam sealing, and it lacks an exterior hang loop, which could be a deal-breaker for some.

Pyramid Tarp Shelters: The Ultimate Versatility

Pyramid tarp shelters are a favorite among outdoor enthusiasts for their adaptability. The Cinder Cone is no exception, offering various setup options, including the ability to use it with or without an inner floor and pitch it in four different ways. SlingFin has designed the Cinder Cone with a deep understanding of what makes an ideal pyramid shelter, and it shows.

The brand has established itself in the four-season mountaineering shelter market, but the Cinder Cone is a lightweight option that appeals to thru-hikers, bikepackers, and paddlers. I tested its versatility in extreme weather conditions, and it passed with flying colors, from high-speed winds in Patagonia to soaked tundra camping in Alaska.

A Burly Build for Burly Adventures

SlingFin's attention to detail and use of high-quality materials are evident in the Cinder Cone's construction. The 10D sil-nylon 66 body keeps the weight down, and the ALUULA Durlyte top cap sets it apart. ALUULA's Durlyte is a cutting-edge material, pushing the boundaries of durability, and its use in the tarp's top cap is a testament to SlingFin's commitment to innovation.

The Cinder Cone also includes thoughtful features like multiple guyline loops, Linelocs for perimeter pull-out loops, a YKK VISLON Aquaguard zipper, and Radial Seam Tape to limit stretch. These details ensure the tarp's longevity and performance in various conditions.

Adaptable Setup for Any Terrain

One of the Cinder Cone's standout features is its ability to set up easily in rugged or unfavorable terrain. After a long day of trekking in Alaska, setting up the tarp on uneven ground was a breeze. SlingFin's decision to not include a pole is intentional, as most outdoor enthusiasts already have trekking poles, packraft paddles, or can find suitable sticks. For those with space constraints, SlingFin offers a carbon collapsible pole.

The Cinder Cone's Quick Pitch Cord is a clever addition, ensuring a perfect setup every time by maintaining the correct distance between opposite corners. This feature, combined with its versatile guy lines, allows for easy adjustments in various weather conditions, from heavy snow in Patagonia to strong winds in Alaska.

Unparalleled Ventilation for Comfort

One of the most impressive aspects of the Cinder Cone is its ventilation system. Many pyramid shelters struggle with overheating, but the Cinder Cone's unique trio of high-set portals provides exceptional airflow. During a windy night in Patagonia, these vents allowed for pressure relief, ensuring a successful setup and a well-ventilated shelter.

The Cinder Cone's ventilation options are further enhanced by a simple cord system that lifts the tarp's hems, allowing breezes to circulate underneath. This feature sets it apart from competitors like the Black Diamond Mega Snow 4P Mid, making it a more comfortable choice for various activities.

Room for Improvement: Sealing and Durability

While the Cinder Cone excels in many areas, no product is perfect. I experienced some minor issues with seam weepage during a rainy night in Alaska, which was easily fixed with seam sealant. Additionally, the materials, while high-quality, are not indestructible, as I discovered when I tore the floor while moving a kayak paddle. These are minor drawbacks that can be addressed with simple maintenance and careful use.

The Final Verdict: A Top Contender in the Pyramid Tarp Space

The pyramid tarp shelter market is competitive, with options like the Hyperlite Mountain Gear Ultamid 4, Black Diamond Mega Snow, and Mountain Laurel Designs Supermid. However, the SlingFin Cinder Cone stands out as a top contender. It offers a more affordable and compact alternative to the Ultamid, better ventilation than the Mega Snow, and wider availability than the Supermid. At $435 without the inner, it provides exceptional value for a high-quality, versatile shelter.

This winter, I'm excited to use the Cinder Cone for ski trips in the North Cascades. Its compact size and roomy interior make it ideal for overnight trips and traverses. While it may not be a 'quiver killer,' it has replaced my modified pyramid tarp, and I couldn't be happier with the results. No more sewing, just pure outdoor adventure!

SlingFin Cinder Cone Review: Ultimate Pyramid Tarp for Backcountry Expeditions (2025)
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