Sea to Summit Spark Pro -1°C Down Sleeping Bag

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Product Description

ULTRALIGHT THREE-SEASON PERFORMANCE

Sea to Summit’s Spark Pro –1°C Down Sleeping Bag pairs premium 950+ fill-power RDS-certified Ultra-Dry Down with ultralight 10D nylon shell and liner for outstanding warmth-to-weight in cool conditions. The technical hood, anatomical footbox and Free-Flow Zip system seal in heat where you need it most and allow versatile venting on warmer nights—ideal for ultralight backpacking down to –1 °C.

FEATURES SPECIFICATIONS

Why Spark Pro –1°C Down Sleeping Bag?

This ultralight mummy bag balances minimal bulk with strategic insulation and ventilation, keeping you comfortable in three-season conditions.

Take on crisp nights—add the Spark Pro –1°C Down Sleeping Bag to your cart at Land & Sea today.

Spark Pro –1°C Down Sleeping Bag Features

950+ Fill-Power Ultra-Dry Down: RDS-certified goose down for superior loft and moisture resistance.
Featherweight 10D Nylon Shell & Liner: Breathable fabrics with PFC-free DWR treatment on critical zones.
Technical Hood & Anatomical Footbox: Engineered for heat retention without restricting movement.
Free-Flow Zip System: YKK® #5 side zipper plus footbox zips for customizable ventilation and snag-free operation.
Hybrid Baffle Construction: Combines box and sewn-through baffles to optimize warmth-to-weight at –1 °C.
Lifetime Guarantee: Sea to Summit support for the life of your bag.

Spark Pro –1°C Down Sleeping Bag Specifications

Comfort Rating: 30 °F (–1 °C).
Fill Power: 950+ goose down (RDS-certified, Ultra-Dry).
Shell & Liner Fabric: 10D nylon with PFC-free DWR treatment.
Weight: Not specified [Regular], Not specified [Long].
Compressed Volume: 5.3L [Regular], 5.5L [Long].
Shape: Ergonomic mummy for optimal heat retention.
Size Options: Regular (fits users up to 185 cm), Long (fits users up to 198 cm).
Includes: 40D recycled nylon compression bag.

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