Why We Like The Spark SpII 28 Down Sleeping Bag

Experience ultimate comfort and convenience with the Spark SpII 28 Down Sleeping Bag by Sea to Summit. Perfect for backpackers, racers, cyclists, and alpine climbers, this ultralight and compact sleeping bag offers a minimalist design without compromising on a good night's sleep outdoors.

Featuring 850-fill down, this sleeping bag provides exceptional warmth-to-weight ratio, making it one of the lightest options available. The durable nylon shell is not only windproof but also prevents the down from breaking through, ensuring long-lasting performance. Meanwhile, the smooth nylon lining adds an extra layer of durability.

What sets this sleeping bag apart is the Ultra-Dry Down treatment, which enhances its resistance to moisture. So, regardless of the conditions, you can rely on this bag to keep you warm and comfortable throughout the night.

Product Details

• Lightweight and compressible design for alpine adventures
• Contoured mummy shape provides ample room without sacrificing thermal efficiency
• Ultra-Dry Down technology resists moisture for a warm sleep in wet conditions
• Highly compressible nylon shell for effortless packing
• Vertical baffles in the torso area enhance warmth around the core
• Horizontal baffles in the lower body area minimize weight without compromising insulation
• Draft tube prevents heat from escaping through the side zipper
• Half-zip, 2-way zipper allows for quick ventilation on warmer nights

Material [face fabric] 10D nylon, [lining] 7D nylon

Insulation RDS 850+ Loft Premium Goose Ultra-Dry Down

Shape contoured mummy

Zipper half-length

Max User Height [regular] 6ft, [long] 6ft 4in

Shoulder Circumference [regular] 59in, [long] 62in

Hip Circumference [regular] 51in, [long] 54in

Foot Circumference [regular] 35in, [long] 58in

Bag Length [regular] 6ft, [long] 6ft 4in

Draft Tube yes

Pockets none

Pad Retainer none

Venting two-way zipper

Fill Weight [regular] 10.6oz, [long] 12.2oz

Degree 28F

European Norm/ISO Comfort Rating 35F

European Norm/ISO Lower Limit Rating 28F

Storage Sack storage cell

Stuff Sack Ultra-Sil compression bag

Stuff Size [regular] 11 x 5in

Claimed Weight [regular] 1lb 1.3oz, [long] 1lb 3.8oz

Activity backpacking, mountaineering

Manufacturer Warranty lifetime