Underground Quilts Bivy Solo Tarp

The Underground Quilts Bivy Solo Tarp is a compact ground tarp sized for a single sleeping pad, cut with a catenary curve along the ridgeline so the canopy pulls taut into a smooth, wind-shedding shape rather than sagging like a flat rectangular tarp. Catalog data lists it at 224.8 g with a 2000 mm waterproof rating, which sits in typical ultralight tarp territory and comfortably exceeds the threshold usually considered rain-worthy for backpacking use. The canopy is silpoly rather than silnylon, a material choice that resists stretching when wet — silnylon pitches often need re-tensioning as they absorb moisture overnight, while silpoly tends to hold its shape, which matters for a low, tautly pitched shelter like this one. Guylines are included, and the tarp itself requires no dedicated pole — pitching typically relies on a trekking pole, a taut line between two anchor points, or similar support plus stakes. This is a minimalist shelter for solo ultralight hikers who already carry trekking poles and are comfortable with tarp-style camping — not a fully enclosed tent, but a low-weight option for three-season trips where saving grams on shelter matters.