JUNGLE KING Ultralight Duck Down Mummy Sleeping Bag – Rated to -35°C, 1.8kg & 2.3kg Options

Engineered for Extreme Cold. Built to Be Carried.

When temperatures plunge and the stakes are high, the JUNGLE KING Ultralight Duck Down Mummy Sleeping Bag delivers. Rated to -20°C comfort / -35°C extreme, this bag wraps you in premium duck down insulation while keeping pack weight to a minimum. Whether you’re winter mountaineering or cold-weather base camping, this is the bag that won’t let you down.

Key Features

• Duck Down Insulation – Exceptional warmth-to-weight ratio for serious cold
• Temperature Rating – Comfort -20°C / Extreme -35°C
• 400T Nylon Outer Shell – Durable, lightweight, and wind-resistant
• Mummy Cut Design – Contoured fit locks in body heat efficiently
• Full-Length Zip with Draft Collar – Seals out cold air at every entry point
• Splicing Design – Zip two bags together for shared use
• Two Weight Options – 1.8kg (lighter carry) or 2.3kg (extra warmth)
• Generous Dimensions – 210 × 85 × 60 cm for comfortable movement

Specifications

Why Choose This Sleeping Bag?

Duck down outperforms synthetic fill at low temperatures — it compresses smaller, weighs less, and insulates better when dry. The JUNGLE KING bag takes that advantage and adds a mummy cut that eliminates dead air space, a draft collar that stops cold from sneaking in at the neck, and a splicing system that lets two bags become one for couples or group warmth. It’s a serious bag for serious conditions.

Ideal For

• Winter mountaineering and alpine camping
• Cold-weather backpacking
• Base camp expeditions
• Polar and sub-zero adventures
• Couples camping (splicing feature)

In the Box

• 1 × JUNGLE KING Duck Down Mummy Sleeping Bag
• Compression storage bag