- Stock: In Stock
- Brand: Ice Flame
- Model: SD400-NXT L
- Weight: 640.00g
Available Options
Experience Lightweight Warmth and Comfort on High-Altitude Adventures
When you're tackling high-altitude trails or embarking on ultralight expeditions, every gram counts. The ICE Flame SD400 NXT is engineered for 3-season adventures, offering exceptional warmth without the bulk. Filled with premium 800 fill power Muscovy duck down, this sleeping bag ensures optimal insulation for temperatures ranging from -2°C to 10°C (28°F to 50°F).
The outer shell is crafted from 10D ripstop nylon with a durable water-repellent (DWR) finish, providing resistance against wind and moisture. Inside, the 10D breathable nylon lining offers a soft, skin-friendly touch, enhancing comfort throughout the night. The innovative 3D box construction in the front and single baffle design in the body optimize heat retention while maintaining a lightweight profile.
Designed with sustainability in mind, the SD400 NXT is free from PFOA and PFOS, aligning with eco-conscious outdoor enthusiasts' values. Whether you're ascending to 6000m peaks or enjoying a cool spring night under the stars, this sleeping bag is your reliable companion.
Key Highlights / Features:
800FP Muscovy Duck Down – High-quality insulation for superior warmth-to-weight ratio.
3D Box & Single Baffle Construction – Enhances thermal efficiency while reducing weight.
10D Ripstop Nylon Shell with DWR – Offers wind and moisture resistance.
10D Breathable Nylon Lining – Soft and skin-friendly for added comfort.
PFOA/PFOS-Free – Environmentally responsible manufacturing.
Compression Sack Included – Allows for compact packing and easy transport.
Specifications:
Temperature Ratings
Comfort Range: -2°C to 10°C (28°F to 50°F)
Down Fill
Fill Power: 800FP
Type: Muscovy Duck Down
Fill Weight: 400g (Standard)
Size & Weight
Sizes Available: Small, Medium, Large
Total Weight: 726g (Standard Fill)
Packed Size: 27 × 17 cm (10.6 × 6.7 in)
Materials & Construction
Outer Fabric: 10D Ripstop Nylon with DWR
Inner Fabric: 10D Breathable Nylon
Construction: 3D Box (Front), Single Baffle (Body)
Chemical-Free: PFOA/PFOS-Free
Included in Package
Sleeping Bag ×1
Compression Sack ×1
RDS Certification
Ice Flame sources down that complies with the Responsible Down Standard (RDS) wherever possible. RDS certification ensures humane treatment of birds and full traceability from farm to finished product.
| Certificate No. | Certified Weight | Issue Date | Seller | Buyer |
|---|---|---|---|---|
| 200.00 kg | 2024-11-08 | Guangdong Kulida Down Products Co., Ltd. | Anxin County Ice Flame Outdoor Down Products Co., Ltd. | |
| 200.00 kg | 2025-03-19 | Guangdong Kulida Down Products Co., Ltd. | Anxin County Ice Flame Outdoor Down Products Co., Ltd. |
Note: RDS certified down increases product cost. For premium 900FP down, due to the small quantities sourced, the cost of RDS certification often exceeds the value of the down itself, making it impractical to certify.
Smell Control
Ice Flame uses mature goose and duck down—not down from young birds—and processes it in-house with high-grade detergent to remove grease smell without masking agents or perfumes.
Fill Power & Insulation Quality
Ice Flame selects down from cold climate regions to ensure maximum loft and insulation performance. No chemical additives are used to artificially boost fill power, making our gear more sustainable and longer-lasting.
| Fill Power | Type | Composition |
|---|---|---|
| 820FP | Goose Down | 92% White Goose Down (IDFL tested) |
| 700FP | Duck Down | 85% White Duck Down (IDFL tested) |
| 800FP | Goose / Muscovy Duck Down | Premium untreated fill |
| 900FP | Goose Down | Small batch, high-end (not RDS certified) |
We source products from all over the world to bring you epic offers and the lowest prices. This means sometimes you have to wait a little longer to get your order but it's always worth it!
We’re a New Zealand-owned company, and to bring you the best value, we work directly with trusted suppliers across Asia, North America, and other regions.
This means some items are shipped directly from our international partners.
Orders are typically processed within 24–72 hours, though during busy periods, dispatch may take up to 5 business days.
Once shipped, you’ll receive a tracking number via email.
Estimated delivery timeframe: 1 to 2 weeks, depending on your location and the item’s origin.
For products stocked locally in New Zealand
Orders are typically processed within 1 to 3 business days. During peak periods or public holidays, processing times may be slightly extended. Once dispatched, delivery generally takes 4 to 7 working days, depending on your location. A flat shipping fee of $9.99 applies to all orders under $99, while orders over $99 qualify for free shipping. Tracking information will be provided via email once your order has been shipped.
For further information on delivery procedures, timeframes, and policies, please refer to our Delivery Policy page.