Slingfin website started at the top of the mountains in 2010 with a focus on designing expedition tents for peaks like Everest. slingfin develops expedition and ultra-light tents of the extra class. SlingFin, Inc. We want to build the most stable tents for the weight of the tent. We use premium materials and draw on decades of industry experience to construct industry-leading shelters that perform from the trail to the summit. | 187 followers on LinkedIn. The Portal can be set up fly-first to keep the inner tent dry in rainy conditions. We designed the Portal with an eye for long-term durability. The best material selection, product design and ease of use are in the foreground at Slngfin. SlingFin designs the strongest mountaineering tents, backpacking tents, and ultralight tents in the world. This means using premium fabrics with excellent UV and mildew resistance, eliminating PU coatings that break down over time, and adding extra zipper sliders to double the zippers' lifespan. we stand for top-class quality. Founder, Martin Zemitis, began designing and building gear in high school, worked as a design assistant at companies such as The North Face, and then became the Lead Designer first at Sierra Designs and then Mountain Hardwear. . SlingFin is an American outdoor equipment based in Berkeley, CA. SlingFin builds the strongest, most innovative, detail-oriented, user-focused mountaineering, alpine, backpacking, and ultralight tents in the world. dyhlyvybbcaznoitzepvokeowwkbtaebnimerhforohggjwnzgunflhpyyazy