The Kamina Dome is a full-spec, four-season mountain tent designed to balance durability, structural strength, and a spacious living environment with exceptional compactness and lightweight performance.
In this three-part series, we explore the materials that make that balance possible. In Volume 2, we focus on the inner fabric, built using an ultra-fine 7-denier yarn. Let's dive into it!
Extreme Lightness You Can Feel, Strength You Can Rely On
The inner fabric of the Kamina Dome uses 7-denier yarn, so fine it is almost invisible. When you first handle it, it feels impossibly light. Almost fragile.
But that first impression is misleading.
Behind that lightness is a carefully reinforced structure. A 30-denier ripstop grid runs through the fabric, adding strength exactly where it is needed. The reinforcement yarns are more than four times thicker than the base yarn, creating a subtle framework that resists tearing without adding unnecessary weight.
Both the base and reinforcement yarns use high-tenacity Nylon 66, giving the fabric a level of resilience you would not expect from something this light.
The goal is simple. When you pack your tent deep into the mountains, you feel the weight savings. When the weather shifts or the fabric is under stress, you feel the reliability.
Light in your pack. Confident in the field.
Experience and Precision Construction
The Kamina Dome is not our first time working with 7D ripstop. Back in 2014, we used 7D fabric in the Polygon 2UL Jacket and Pants to push weight reduction as far as we could. That project taught us a lot about how ultra-fine fabric actually behaves in real products, not just in theory.
With 7D, you quickly realize it is not only about lighter yarn. The material reacts differently under tension. It shifts more easily during sewing. It demands much tighter control of friction and feed. The very thinness that gives you weight savings also makes it unforgiving during construction.
After weaving, the fabric is cut and sewn in domestic factories that are used to working with this kind of material. Sewing 7D cleanly requires careful control of machine speed, tension, and handling. When it is done properly, the result is a structure that feels surprisingly stable for something this light.
That accumulated experience is what allows us to use 7D with confidence in a four-season tent.
Built from the Smallest Details
The 7D inner fabric is another step in refining the strength-to-weight balance of the Kamina Dome.
From yarn selection through final stitching, every stage is handled with care here in Japan. Working with ultra-fine materials requires precision and experience, especially during sewing, where small differences in tension and handling can change the outcome. It is quiet, meticulous work, but it is essential.
Made in Japan, from material to construction, the goal remains simple: create a structure that performs exactly as intended when conditions become demanding.
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