Sleep Warm. Travel Light. Ready for All Seasons.

📐 Specifications:

• Color: Green

• Fabric: 190T Tear-Proof Waterproof Polyester

• Inner Lining: 190T Pongee Soft Polyester

• Filling: Hollow Cotton

• Comfort Temperature Range:

  • Summer Type: Over 25℃

  • Spring & Autumn Type: 10℃–20℃

  • Winter Type: 0℃–5℃–10℃

• Size: 220 × 75 cm (86" × 29")

• Weight: 0.8 kg (1.8 lbs)

• Design Features: Bottom zipper for breathability, adjustable elastic strap for warmth control

• Includes: Compression bag with double tightening straps

🔍 Key Features:

1. All-Season Comfort – Choose from multiple weight options for summer, spring/fall, or mild winter conditions.

2. Ultralight & Packable – Weighs only 0.8kg and compresses to half its size for easy backpack storage.

3. Durable & Weatherproof – Tear-resistant 190T polyester shell with waterproof coating keeps you dry and warm.

4. Breathable & Skin-Friendly – Inner lining made with soft 190T polyester pongee for a comfortable sleep.

5. Smart Temperature Design – Bottom zipper improves air circulation when hot; elastic strap keeps warmth sealed in when cold.

📖 Product Description:

Whether you're hiking through the mountains or camping by the lake, the Ultralight 4-Season Envelope Sleeping Bag is designed to keep you warm, dry, and comfortable in a wide range of weather conditions. Built with a durable 190T waterproof polyester shell and filled with hollow cotton insulation, this sleeping bag effectively retains heat while blocking out moisture. Its breathable and soft inner lining ensures a cozy sleep, even after a long day of outdoor adventure.

Choose the version that suits your needs—summer, spring/autumn, or winter—with a clever design that adapts to your comfort. The bottom zipper allows you to vent out heat on warmer nights, while the adjustable elastic strap locks in warmth when temperatures drop. Weighing just 0.8kg and including a compression bag that halves its size, it’s the perfect portable sleeping solution for backpackers, hikers, and all-season explorers.