Product Detail

Pushing boundaries and taking risks, the Sea to Summit Spark Women's Down Sleeping Bag -1°C is the ultimate ultralight and compressible 2.5-season sleeping bag on the market. precision engineered for women with premium materials combined for unparalleled warmth, so you can conquer the elements with ease. Best used for ultralight backpacking. The women's specific mummy fit is narrower at the shoulder and wider at the hip, and features extra down compared to the unisex Spark models.

Ultralight does not mean ultra-tight: The Spark mummy sleeping bags are snug but still have adequate wiggle room for the performance-oriented, backcountry user.

Pair up your Sea to Summit sleeping bag with a compatible liner for the ultimate sleep system. Sleeping Bag Liners

More Help? For further assistance on choosing your down sleeping bag, we have an article explaining fill power, the pros and cons of down over synthetic insulation and more info on caring for your bag available to view here: A Guide to Down Sleeping Bags.

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.
  
• Women's Mummy Fit: Fitted cut with generous footbox and technical hood, to maximise thermal efficiency and minimise bulk and weight. Wider at the hips and narrower at the shoulders for a better fit and heat retention for women.
  
• Spark Women's 7C & 1C Primary zip - 1/2 length #5 with zip-plow and two sliders. Spark Women's -9C Primary zip - 3/4 length #5 with zip-plow and two sliders.
  
• Spark Women's 7C Vertical chest baffles, horizontal baffles lower half and base, sewn through quilted construction throughout.
  
• Spark Women's -1C Vertical chest baffles, horizontal baffles lower half and base, box wall baffles top half of bag and sewn through quilted construction lower half.
  
• Spark Women's -9C Vertical chest baffles, horizontal baffles lower half and base, box wall baffle construction throughout.
  
• QuiltLock: Every Sea to Summit sleeping back features the QuiltLock system that uses the snap locks located at the shoulder and foot end of Sea to Summit sleeping bags plus the quilt footbox / quilt straps to secure a quilt to the sleeping bag. This adds thermal performance and versatility to your sleep system: your integrated Sea to Summit quilt now works for ultralight summer adventures and turns your three-season bag into a four-season sleep system.
  
• Pairing with unisex Sea to Summit bags, the QuiltLock system and drawcord footbox enables quilts to be secured to sleeping bags for added functionality and freedom.

Specification 

• Maximum User Height:  Regular: 170cm /  - Long:  185cm
• Comfort Temperature: -1°C
• Comfort Temperature limit: -7°C
• Shoulder width:  Regular: 142cm / Long: 152cm
• Waist With: Regular: 132cm / Long: 142cm
• Foot box width:  Regular: 92cm / Long: 102cm
• Insulated collar: Yes
• Shell Fabric: 10-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox.
• Filling: Ultra-Dry goose down
• Fill power: 850+
• Weight: Regular: 584g / Long: 639g
• Fill Weight: Regular: 375g / Long: 430g
• Compression Regular: Size: 5L / Long: 8L
• Zip: Right