Mountain Hardwear Shasta™ 15F/-9C

The Mountain Hardwear Shasta 15F/-9C is a synthetic mummy sleeping bag rated by the manufacturer to -9°C (15°F), positioning it as a three-season option for backpacking and car camping rather than winter use. Thermal.Q insulation, a recycled synthetic fill, keeps warmth reasonably intact even if the bag gets damp — a practical advantage over down in humid or wet conditions where drying time matters. At 1466 g it is heavier than comparable down bags in its temperature class; synthetic fill trades weight and packability (11.3 L packed) for moisture tolerance and a lower price point. The mummy cut with a 218 cm internal length, 157 cm shoulder and 140 cm hip width suits users up to 183 cm, and the 20D ripstop polyester shell keeps the package durable rather than delicate. Full-length two-way zipper, draft collar, draft tube and an internal pocket round out the feature set. This is a bag for hikers prioritizing reliability and easy care over shaving grams — a solid shoulder-season choice for backpacking rather than an ultralight thru-hike staple.