BSWOLF Ultralight Waterproof Envelope Sleeping Bag – 3-Season Cotton Fill, Splicing Double (1.35kg / 1.5kg / 1.8kg)
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The BSWOLF SL010-1 Envelope Sleeping Bag is the reliable three-season companion that adapts to your conditions. Available in three fill weights — 1.35 kg, 1.5 kg (Widen), and 1.8 kg — it covers the full spring-to-autumn temperature range from 5°C to 15°C. The 190T anti-tear polyester shell is waterproof and durable, while the hollow cotton fill provides consistent, breathable insulation that holds up across seasons.
The splicing double zipper (L + R options) lets you connect two bags for a spacious double sleeping bag — ideal for couples. A built-in compression bag with two tightening straps reduces packed volume by half. The bottom zipper ventilation lets you regulate temperature when conditions warm up. Note: the Widen option (1.5 kg) is only available in the wider 230 × 90 cm cut.
Specifications
| Specification | Detail |
|---|---|
| Brand / Model | BSWOLF SL010-1 |
| Style | Envelope / Splicing Double |
| Filling | Hollow Cotton |
| Shell Fabric | 190T Anti-Tear Polyester (Waterproof) |
| Lining | 190T Polyester Pongee |
| Season | 3-Season (Spring, Summer, Autumn) |
| Temperature Rating | 5°C to 15°C |
| Standard Size | 220 × 75 cm (1.35 kg / 1.8 kg) |
| Widen Size | 230 × 90 cm (1.5 kg only) |
| Splicing | Yes – pair L + R zipper for double bag |
| Bottom Zipper | Yes – foot ventilation |
| Applicable Users | Adults |
| Available Colors | Dark Blue, Light Brown |
Why Choose the BSWOLF SL010-1?
- Three Fill Weights: 1.35 kg, 1.5 kg, and 1.8 kg — match your insulation to your conditions rather than over- or under-packing warmth.
- 190T Anti-Tear Waterproof Shell: Durable and water-resistant — keeps the cotton fill dry from ground moisture and light rain.
- Splicing Double Design: Pair a left-zip and right-zip bag for a spacious double sleeping bag — ideal for couples camping together.
- Compression Bag Included: Two-strap compression bag reduces packed volume by half — fits in or on your backpack without taking over your kit.
- Bottom Zipper Ventilation: Open the foot zipper to regulate temperature when conditions warm up — no need to fully unzip on mild nights.
Ideal For
- Spring, summer, and autumn camping trips
- Backpacking and multi-day hiking in mild conditions
- Couples camping (pairing L + R zipper bags)
- Campers who want adjustable insulation across three fill weights
- Adults needing a reliable, packable three-season bag
In the Box
- 1 × BSWOLF Envelope Sleeping Bag (size & fill weight as selected)
- 1 × Compression carry bag (2-strap)
- Free Worldwide Shipping: Enjoy complimentary shipping on all orders, no matter where you are located.
- Fast Delivery: Expect your order to arrive within 5 to 10 days after dispatch, ensuring you receive your items promptly.
- 15-Day Return Policy: Not satisfied with your purchase? No worries! You have 15 days from the date of delivery to initiate a hassle-free return.
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