Engineered for cold-weather reliability, the Thermapest uses synthetic insulation to deliver consistent warmth even when damp — a critical advantage over down when you're camping near glaciers or in unpredictable mountain weather. Its mummy shape traps heat efficiently around the body while minimizing dead air space, and at 2.25kg it stays reasonably packable for a bag rated this warm.

Built to fit taller users up to 6.6 feet comfortably, it's rated to a comfort limit of -18°C, making it suitable for high-altitude camps and shoulder-season expeditions alike. The left-side zip allows easy entry and exit without disturbing a tent partner positioned on the right. Note: this is a stock lot item with limited units available — once sold out, it won't be restocked at this listing.

Features
Synthetic Insulation
Weight: 2.25kg (Regular Size)
Fits up to 6.6 ft
Comfort Limit: -18°C
Left Zip
Mummy Shape