Naturehike Snowbird Down Sleeping Bag

Ultralight Comfort for Cold Weather Adventures

Cold nights in the backcountry can ruin your sleep and your energy the next day. Most sleeping bags either weigh too much or don’t hold enough warmth when the temperature dips.

The Naturehike Snowbird Down Sleeping Bag solves this with 85% duck down insulation, delivering the perfect blend of warmth and packability. Available in SP400 and SP700 variants, it’s built for 3-season and full-winter use, with comfort ratings as low as -14.5°C. Whether you're trekking through alpine ridgelines or setting up camp under a frozen sky, this bag ensures you stay warm without being weighed down.

Crafted with 20D water-repellent nylon fabric and a YKK 2-way zipper, it resists moisture and delivers smooth operation even in frigid temps. The C-shaped insulation design keeps 60% of the down where it matters most — your upper body. Adjustable drawcords, a neck collar (SP700), and draft tubes lock in heat, while the mummy cut reduces bulk and dead air space.

After a night in the Snowbird, you'll wake up refreshed, not frozen — ready to take on the trail again.

Key Highlights / Features:

• 85% high-loft duck down (650FP) for efficient insulation

• SP400: 400g fill weight, suitable to ~1.4°C

• SP700: 700g fill weight, rated down to -14.5°C

• Lightweight: from just 820g (SP400 M) to 1.32kg (SP700 L)

• Packs down small — as compact as Φ16×34cm

• Durable 20D nylon shell with water-resistant finish

• YKK 2-way zipper for smooth operation

• Ergonomic mummy shape with U-neck collar (SP700)

• Compression sack included

Specifications:

• Shell Fabric: 20D Water-Resistant Nylon

• Lining: 20D Soft Touch Nylon

• Fill Power: 650FP

• Fill Material: 85% Duck Down

• Weight:

  • SP400 M: 820g / L: 850g

  • SP700 M: 1.2kg / L: 1.32kg

• Storage Size: SP400 – Φ16×34cm | SP700 – Φ19×40cm

• Temperature Ratings:

  • SP400: 3.8°C ~ -1.4°C

  • SP700: -7.3°C ~ -14.5°C

• Suitable for: Spring, Autumn, and Winter camping

• Available Sizes: M (190cm), L (205cm)

• Style: Mummy