Sea to Summit Spark -18°C Down Sleeping Bag | Men's

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ULTRALIGHT EXTREME COLD PERFORMANCE

Sea to Summit’s Spark –18°C Down Sleeping Bag for Men pairs RDS-certified 850+ fill-power Ultra-Dry Down with an ultralight 10D nylon shell and liner to deliver maximum warmth-to-weight in extreme-cold conditions. The technical hood, anatomical footbox and full-length YKK® #5 zipper with draft tube seal in heat without bulk—ideal for ultralight backpacking down to –18 °C.


Why Spark –18°C Down Sleeping Bag – Men’s?

This ultralight mummy bag is engineered for extreme-cold adventures, balancing minimal weight with targeted warmth exactly where you need it.

Face winter head-on—add the Spark –18°C Down Sleeping Bag to your cart at Land & Sea today.


Spark –18°C Down Sleeping Bag – Men’s Features

  • RDS-Certified 850+ Fill-Power Down: Ultra-Dry Down treatment for maximum loft and moisture resistance.
  • 10D Nylon Shell & Liner: Ultralight, breathable fabrics with non-PFAS DWR on hood and footbox.
  • Technical Hood & Anatomical Footbox: Engineered to trap warmth without restricting movement.
  • YKK® #5 Zipper with Draft Tube: Full-length side zip with plow for snag-free operation and heat retention.
  • Full Box Baffle Construction: Strategically placed baffles maximize warmth at –18 °C.
  • Sea to Summit Lifetime Guarantee: Product support for the life of your bag.

Spark –18°C Down Sleeping Bag – Men’s Specifications

  • Comfort Rating: 0 °F (–18 °C).
  • Fill Power: 850+ goose down (RDS-certified, Ultra-Dry Down).
  • Shell & Liner Fabric: 10D nylon with non-PFAS DWR treatment.
  • Weight: 1,113 g (2 lb 7.3 oz) [Regular], 1,204 g (2 lb 10.5 oz) [Long].
  • Compressed Volume: 9.9 L [Regular], 10.6 L [Long].
  • Shape: Ergonomic mummy for optimal heat retention.
  • Size Options: Regular (fits users up to 185 cm), Long (fits users up to 198 cm).

 

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