Sea To Summit Spark -1C Down Sleeping Bag Long

An ultralight, two-season sleeping bag rated to -1C, featuring 850+ fill power goose down, a non-PFC Ultra-Dry Down treatment, and a durable 10D nylon shell with PFC-free DWR.

The Sea to Summit Spark -1C Down Sleeping Bag Long is a lightweight sleeping bag designed for ultralight backpacking. Featuring a lower temperature rating of -1°C, this sleeping bag is ideal for two-season use. It is filled with 850+ fill power responsible down standard (RDS) certified goose down, treated with a non-PFC Ultra-Dry Down treatment to ensure superior insulation and moisture resistance. The 10D nylon liner and shell, both with PFC-free durable water repellent (DWR), provide exceptional breathability and durability. The Spark includes a technical hood, ergonomic mummy shape, and anatomical footbox, ensuring a snug fit and maximum warmth. The YKK #5 zippers with zipper plough and the hybrid box baffles enhance its functionality and comfort. The sleeping bag also comes with an Ultra-Sil Compression Bag and Storage Cell for easy packing and transportation.

Key Features:

Weight: 536g.
Height: 198cm.
Compressed Volume: 5.1L.
Lower Temperature Rating: -1C, suitable for two-season use.
850+ Fill Power Goose Down: High loft and excellent warmth-to-weight ratio.
Non-PFC Ultra-Dry Down Treatment: Maintains loft and warmth even in damp conditions.
10D Nylon Liner and Shell: Durable, lightweight, and breathable with PFC-free DWR.
Technical Hood: Designed for warmth and comfort.
Ergonomic Mummy Shape: Snug fit for maximum warmth.
Anatomical Footbox: Provides extra space and comfort for feet.
YKK #5 Zippers with Zipper Plough: Smooth and snag-free operation.
Hybrid Box Baffles: Prevent down migration for consistent insulation.
Ultra-Sil Compression Bag and Storage Cell: Facilitates compact packing and easy storage.

Brand : Sea To Summit

Model # : ASL041072-210104

Barcode : 9327868150687 (AU)

Product Family : Spark

Shape : Mummy

Zipper Position : Left

Insulation Type : Down

Lower Temperature Limit (degrees Celsius) : 0 to -4

Temperature Rating : 30°F | -1°C

Weight : 1lb 2.9oz | 536g

Volume Compressed : 5.1L

Compression Sack Size : 8 L

Recommended User Height : 198cm | 6ft 6in

Shipping Options

Free shipping on orders over $100 to Australia & NZ*

Shipping on small orders (under $100) only $9.95

Express shipping to Australia & NZ only $15

Standard Shipping (AU/NZ) – FREE on orders over $100 and $9.95 on orders under $100. Orders are dispatched within 1 business day. Click here for shipping delivery times

Select ‘Standard Shipping – Auspost Only’ if you would prefer your parcel is sent with Auspost. Otherwise it will be shipped with any of our available carriers. Auspost Only shipping is not available on some very heavy/bulky orders.

Express Shipping (AU/NZ) – Need it faster? Express Shipping is available for $15. Express Shipping is not available on heavy/bulky orders. Orders placed before midday on business days are usually dispatched same day (otherwise within 1 business day). Delivery times in the table below.

Click and Collect – Shop online and collect in our Milton, Brisbane store, free for all orders. Orders are usually ready within 2 hours (during opening hours). Click here for address and opening hours.

Terms and conditions apply, click here for a full overview of our shipping policies

Manufacturing defects covered, replaced or repaired if soon after purchase.

Returns and Warranties at a Glance:

If you have selected the wrong product/size for you, or want to exchange/return for any reason except for warranty or our error, this is referred to as a 'change of mind' return.
Not all products are eligible for change of mind returns (click here for excluded products). Final Clearance products are not eligible for change of mind returns.
Once you submit a Return Request, we will provide return instructions via email (along with a prepaid return label if applicable). Please wait to receive this before returning any items (Try 2 Anything excluded)
Change of mind returns can be resolved by your choice of exchange, full store credit, or a refund. Refunds are subject to a $19.95 admin fee.

For a full overview of our returns and warranty policies, see Returns and Warranties