Sea to Summit Spark -1C Long Ultralight Down Sleeping Bag
Sea to Summit Spark -1C Long Ultralight Down Sleeping Bag
Sea to Summit Spark -1C Long Ultralight Down Sleeping Bag
Sea to Summit Spark -1C Long Ultralight Down Sleeping Bag
Sea to Summit Spark -1C Long Ultralight Down Sleeping Bag
Sea to Summit Spark -1C Long Ultralight Down Sleeping Bag
Sea to Summit Spark -1C Long Ultralight Down Sleeping Bag
Sea to Summit Spark -1C Long Ultralight Down Sleeping Bag
Sea to Summit Spark -1C Long Ultralight Down Sleeping Bag
Sea to Summit Spark -1C Long Ultralight Down Sleeping Bag
Sea to Summit Spark -1C Long Ultralight Down Sleeping Bag
Sea to Summit Spark -1C Long Ultralight Down Sleeping Bag
Sea to Summit Spark -1C Long Ultralight Down Sleeping Bag
Sea to Summit Spark -1C Long Ultralight Down Sleeping Bag
Sea to Summit Spark -1C Long Ultralight Down Sleeping Bag
Sea to Summit Spark -1C Long Ultralight Down Sleeping Bag
Sea to Summit Spark -1C Long Ultralight Down Sleeping Bag
Sea to Summit Spark -1C Long Ultralight Down Sleeping Bag

Spark -1C Long Ultralight Down Sleeping Bag

£424.95
£318.45
Save  25%
Sea to Summit Spark -1C Long Ultralight Down Sleeping Bag Sea to Summit Spark - 1C Long
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Don't sacrifice comfort for weight – the Spark -1C sleeping bag strikes the perfect balance.

About the Sea to Summit Spark - 1C Long

Experience the pinnacle of ultralight comfort and performance with the Spark -1C Ultralight Mummy Sleeping Bag. Whether you're embarking on a multi-day trek through rugged terrain or seeking refuge under the starlit sky, these sleeping bags are designed to enhance your outdoor adventures.

Everything about the Spark Ultralight has been engineered to deliver optimum warmth without the weight penalty. A mummy shape and ultra lightweight 10D nylon shell deliver a low bulk sleeping bag with a compact design and packed weight of just 536g.

Ultra-Dry Down 850+ fill power insulation gives you a highly compressible goose down with water-repellent treatment that protects from both external moisture and internal condensation. This helps retain loft and absorb less moisture when compared with untreated down and continues to insulate even in damp conditions. An adjustable hood and generous footbox round out the design to deliver optimum warmth and comfort.

The Spark -1C is crafted with premium materials and a streamlined design, ensuring unparalleled performance in any environment. Snug enough to maximize thermal efficiency, yet spacious for unrestricted movement during those epic hikes and treks.

The Lowdown
  • Best Use: Ultralight Backpacking
  • Bag Weight: 536g
  • Compression Sack: 8L
  • Fill Weight: 305g
  • Fits up to Height: 198cm
  • Season Rating: 2.5 Season
  • Compressed Size: 8L
  • Comes With: Ultra-Sil compression bag and storage cell
  • Fabric: 10-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox
  • Insulation: Ultra-Dry Goose Down 850+ Loft
  • Shape: Relaxed Mummy
  • Zip Options: Left-side #3 YKK zipper
Features
  • 850+ FILL Power, RDS-certified, Goose Down with Ultra Dry Down treatment for improved water resistance in damp conditions
  • 10-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox
  • Mummy Fit: Fitted cut with generous footbox and technical hood, to maximise thermal efficiency and minimise bulk and weight.
  • Primary zip - 1/2 length #5 with zip-plow and two sliders
  • Vertical chest baffles, horizontal baffles lower half and base with box wall baffles top half of bag and sewn through quilted construction lower half
  • Standard front draft collar for added warmth
  • QuiltLock System integrates with STS quilts
Temperature Range (ISO 23537-1)
  • Comfort 4°C | 39°F
  • Lower Limit: -1°C | 30°F

Sea to Summit

One of the most authentic and innovative outdoor brands of the modern era, Sea to Summit design and create durable, lightweight and compact gear allowing you to confidently explore wherever you want.
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