Naturehike CW700 (-1.7º) Duck Down Ultralight Sleeping Bag

Naturehike CW700 (-1.7°C) Duck Down Ultralight Sleeping Bag - is designed for cold-weather adventures with a hybrid mummy-envelope design. The mummy-style upper and U-shaped neck collar lock in warmth, while the rectangular lower body allows free movement and comfort. Filled with 700 g of RDS-certified 650FP duck down, it delivers excellent insulation for environments as low as -7.9℃. With durable ripstop nylon and YKK zippers, the CW700 combines reliability, warmth, and portability for winter camping and ultralight backpacking.

Key Features

• Warmer Hybrid Design – Mummy-style head and neck collar for warmth, envelope bottom for roomy comfort
• Premium Down Insulation – RDS-certified 650FP duck down with 700 g fill, 85% down content
• Cold-Weather Rating – Comfort temperature -1.7℃ (28.9℉), limit -7.9℃ (17.8℉), suitable for 0℃ environments
• Two Sizes Available – Medium: 210 × 75 cm, Large: 220 × 85 cm; weight 1.07–1.31 kg (2.37–2.9 lbs)
• Durable Construction – 20D 400T ripstop nylon with waterproof finish and YKK zippers for long-lasting use
• Practical & Versatile – Packs compactly (Φ20 × 42 cm / Φ22 × 42 cm), can be fully opened as a down blanket

Specification - CW400