Sea to Summit Spark SpII

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NPR43,765

Sold By: Makalu e Traders

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The Sea to Summit Spark SpII Sleeping Bag delivers ultralight warmth for backpacking and mountaineering, featuring 850+ fill power Ultra-Dry Down for moisture-resistant insulation. Buy in Nepal or shop online at Makalu e-Traders for this compact mummy bag rated to comfort 7°C.

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Engineered for fast-and-light adventurers conquering high-altitude passes and monsoon trails, the Sea to Summit Spark SpII targets thru-hikers and climbers prioritizing minimal weight in variable spring-to-autumn conditions. This ultralight down mummy sleeping bag integrates seamlessly into technical kits approaches, where breathable fabrics combat humidity without sacrificing core heat retention. Minimalist explorers value its efficient baffling for unrestricted movement during extended multi-day expeditions in diverse terrains.

Key Features

Mummy shape with contoured fit.
Hybrid baffle construction: box wall over torso, sewn-through at legs.
Full hood with draft collar.
Half-length #3 YKK zipper on left side.
Zipper draft tube.
10D nylon ripstop shell fabric.
7D nylon lining fabric.
Includes Ultra-Sil compression sack.

Key Points

RDS-certified 850+ fill power down exceeds EN 13537 standards for loft retention, outperforming 800-fill competitors in compression recovery.
Non-PFC Ultra-Dry Down treatment repels moisture 10x better than untreated down, superior for humid environments versus standard hydrophobic options.
IDFL-tested down quality ensures consistent performance, with batch certification absent in many budget ultralight bags.
QuiltLock-compatible hem allows modular layering with Sea to Summit quilts, more versatile than non-integrating rivals.
Bluesign-approved fabrics meet OEKO-TEX standards for sustainability, edging out non-certified alternatives in eco-compliance.

Technical Specifications

Shape: Mummy.
Temperature Ratings (EN 13537): Comfort 7°C; Lower Limit -2°C; Extreme -17°C.
Fill Power: 850+ cu in/oz (IDFL certified).
Fill Material: RDS-certified European goose down with non-PFC Ultra-Dry treatment.
Fill Weight: 300 g.
Total Weight: 530 g (regular).
Packed Size: 10 cm diameter x 20 cm height (compressed volume 1.3 L).
Internal Dimensions (regular): Shoulder girth 146 cm; Hip girth 128 cm; Foot girth 88 cm; Length 183 cm.
Shell Fabric: 10D nylon ripstop with DWR (Bluesign approved).
Lining Fabric: 7D nylon with DWR (Bluesign approved).
Zipper: Half-length left-side #3 YKK with anti-snag plow.
Certifications: RDS (Responsible Down Standard); IDFL down testing; ISO 23537 temperature protocol; Bluesign fabrics; OEKO-TEX compliant.

Weight	0.49 kg
Dimensions	183 cm
Size	Regular
Comfort Temperature	4°C
Extreme Temperature	-18°C

Brand

Sea to Summit

Buy Sea to Summit outdoor gear online in Nepal at Makalu e-Traders! Ultralight tents, sleeping bags, dry packs & camp kitchens for trekking, climbing, and expeditions.