Sea To Summit Spark SpIV

All Spark sleeping bags are characterized by their ultra-light weight, minimal pack size and excellent thermal performance. SpIV's fully sewn vertical box chambers contain an extra amount of dew and reduce cold bridges. The expedition size ensures extra space for additional layers of clothing. The vertical chambers in the chest area optimise the distribution of down and prevent slippage. A full side zipper with two sliders allows easy access and provides variable ventilation. UltraDry Down is a PFC-free, water-repellent treatment of the down, which is used in all Sea to Summit sleeping bags. UltraDry Down retains over 60% more fill power, absorbs 30% less moisture and dries 60% faster than untreated down - which means that the down insulates better even when damp. The treatment also inhibits bacterial growth and extends the life of your sleeping bag. The UltraDry Down treatment is an environmentally friendly application. - Type: Mummy sleeping bag - Details: - Ultralight 7D and 10D material for minimum weight and pack size - RDS-certified 850+ Loft Premium Goose Down with Ultra-Dry - Down treatment for maximum insulation values - Contoured mummy shape guarantees efficient insulation - Vertical chest chambers protect against cold bridges - Note: Can not be zipped together with other sleeping bags - Down mix (down / feather): 90 / 10 - Bulking power (cuin): 850 cuin cuin Season - Season: Winter material - Special features: Contains non-textile parts of animal origin - Upper material Description: 100 % nylon - Lining material Description: 100 % nylon - Filling: duck down Measurements - Body height (max.): 192 cm Sleeping bag - Category: Down sleeping bag - Shape: Mummy shape Temperature range - comfort temperature (°C): -8 °C - limit temperature: -15 °C - extreme temperature: -36 °C.