Sea To Summit Spark 4 SPIV Down Sleeping Bag

Sea To Summit Spark 4 SPIV  Down Sleeping Bag

Designed for optimised warmth and minimal weight, Sea To Summit's Spark 4 sleeping bags provide excellent insulation for any environment, thanks to their RDS 850+ Loft goose down, #3 YKK zips, 10D Nylon shells, and 7D lining fabrics. Technology such as ULTRA-DRY Down™ treatment provides added protection from moisture while keeping its certified Responsible Down Standard (RDS) down intact. Perfect for extreme alpine conditions, Sea To Summit's park 4 Down Sleeping Bags are an ideal choice for reliable warmth.

Sea To Summit Spark 4 SPIV  Down Sleeping Bag Features

• Ultralight 7D and 10D fabrics for minimal weight and packed size
• RDS 850+ Loft Premium Goose ULTRA-DRY Down™ for maximum insulation value
• Broad mummy shape for comfort and efficient insulation
• Vertical chest baffles prevent down migration and cold spots
• Vertical box baffles in the torso area accommodates extra down and boosts warmth around the core, vertical baffles on chest optimises positions of down to prevent it moving during use
• Lower part of the bag uses a sewn through horizontal baffle construction to minimise weight
• Full length zip with two sliders aids access and allows ventilation from each end of the bag
• Draft tube prevents heat loss through the zipper
• Includes hood draft collar
• Includes lightweight Ultra-Sil™ Nano compression bag for compact storage

Sea To Summit Spark 3 4 SPIV Down Sleeping Bag Specifications