SEA TO SUMMIT Spark -1C Down Sleeping Bag Long Beluga Black Sleeping bag
ASL041072-210104 How to choose the right sizeThe Spark sleeping bag is the perfect ally for travelers looking for an easy-to-pack, warm companion for their lightweight expeditions. With a high FILL Power rating of 850+ and water-repellent goose down, this sleeping bag offers superior warmth at a light weight.
- Optimal thermal comfort: 850+ FILL Power goose down provides exceptional warmth.
- Waterproof and breathable: 10D nylon shell and lining offer protection in wet conditions.
- 850+ FILL Power goose down
- Ultra Dry Down finish
- 10D Nylon shell and lining
- Mummy Fit design
- Various zipper lengths
- Vertical and horizontal baffles
- Technical hood with adjustment
Toppers:
| COMFORT TEMPERATURE | 4°C |
| LIMIT TEMPERATURE | -1 °C |
Product Specifications:
INSULATION: 850+ FILL Power goose down
MATERIAL: 10D Nylon shell and lining
FIT: Mummy Fit
BAFFLE CONSTRUCTION: Vertical and horizontal with variations by model
FIT: Standard drawcord or double drawcord collar
CAP: Fitted with soft adjustment
FOOL TUBE: Feather-filled, see-through on higher models
COVER INTEGRATION: Pairs with STS blankets
COVER AND LINING: 100% nylon
FILLING: 90/10 goose down
| 7C|45F REGULAR | 7C|45F LONG | -1C|30F REGULAR | -1C|30F LONG | -9C|15F REGULAR | -9C|15F LONG | -9C|15F DOUBLE | -18C|0F REGULAR | -18C|0F LONG | |||
| BAG WEIGHT | 363 g | 387 g | 493 g | 536 g | 730 g | 786 g | 1543 g | 1113 g | 1204 g | ||
| LISTED VOLUME | 2.4 l | 2.9 l | 4.5 l | 5.1 l | 6.8 l | 7.6 l | 14.3 l | 9.9 l | 10.6 l | ||
| COMPRESSIVE LID | 2 l | 3 l | 8 l | 8 l | 13 l | 13 l | 20 l | 20 l | |||
| WEIGHT OF FILL | 150 g | 172 g | 265 g | 305 g | 480 g | 540 g | 985 g | 840 g | /td> | 945 g | |
| FITS UP TO HEIGHT | 185 cm | 198 cm | 185 cm | 185 cm | 198 cm | 185 cm | 198 cm | 198 cm | 198 cm | 198 cm | 198 cm |
| LOWER TEMPERATURE LIMIT | 7 °C | 7 °C | -1 °C | -1 °C | -1 °C | -9 °C | -9 °C | -9 °C | -18 °C | -18 °C | |
| FAT COMFORT LIMIT | 11 °C | 11 °C | 4 °C | 4 °C | -2 °C | -2 °C | -2 °C | -10 °C | -10 °C |
The goods are in the following categories:
Women's camping sleeping bags men's sleeping bags women's trekking sleeping bags Sea to Summit Spark Sea to Summit Sleeping Bags Men's camping sleeping bags SEA TO SUMMIT all
Sea to Summit - the perfect solution for enthusiasts looking for innovative, durable, lightweight and compact equipment. Waterproof bags, cookware, neoprene covers all at great prices and with free shipping from 999k.
Sea to Summit cultivates a culture of perfect design and develops ingenious functionally beautiful products with an Australian "no worries" attitude. Sea to Summit's original ethos to 'equip and inspire' continues to research and develop new techniques, materials, technologies and manufacturing methods. Inspiring new innovative products that keep Sea to Summit at the forefront of providing lighter, better made and more powerful gear to outdoor enthusiasts and travellers around the world.
Zipping two compatible sleeping bags together creates a warm, cosy and comfortable sleeping space for two people. It’s a much more flexible option than a double sleeping bag (which explains why there are so few double sleeping bags on the market).
However, NOT ALL sleeping bags can be zipped together. Below you’ll find a table listing the Sea to Summit sleeping bags that can be joined – at the bottom there are notes clarifying which side zip is listed in the table (and they also include a warning about joining sleeping bags from brands other than Sea to Summit with Sea to Summit sleeping bags).
Current sleeping bags
| Model | Year | Zip side/Type | Zip compatibility |
| Alpine | 2024 | Left #5 | none |
| Spark 45°F | 2024 | Left #5 half zip | none |
| Spark 30°F | 2024 | Left #5 half zip | none |
| Spark 15°F | 2024 | Left #5 full zip | Women's Spark 15°F Any STS bag with a right #5 full zip |
| Spark 0°F | 2024 | Left #5 full zip | Women's Spark 15°F Any STS bag with a right #5 full zip |
| Women’s Spark 45°F | 2024 | right #5 half zip | none |
| Women’s Spark 30°F | 2024 | right #5 half zip | none |
| Women’s Spark 15°F | 2024 | right #5 full zip | Any STS bag with a left #5 full zip |
| Spark Pro | 2024 | Left #5 full zip | Any STS bag with a right #5 full zip |
| Ascent | 2024 | Left #5 full zip | Any STS bag with a right full #5 zip |
| Women's Ascent | 2024 | right #5 full zip | Any STS bag with a left #5 full zip |
| Trek | 2024 | Left #5 full zip | Any STS bag with a right #5 full zip |
| Women's Trek | 2024 | right #5 full zip | Any STS bag with a left #5 full zip |
| Basecamp | 2024 | Left and right #5 full zip | Basecamp Any STS bag with a right full #5 zip |
| Traveller | 2024 | Left #5 full zip | 2024 Traveller and any with the same zip length |
| Hamelin | 2025 | Left #5 wrap-around zip | none |
| Women’s Hamelin | 2025 | right #5 wrap-around zip | none |
| Boab | 2025 | Left #5 wrap-around zip | none |
| Traverse TV | 2019-2024 | Left #5 full zip | Any STS bag with a right #5 zip |
| Venture | 2019 - 2024 | right #5 full zip | Any STS bag with a left #5 zip |
| Trailhead | 2019-2024 | Left #5 wrap-around zip | none |
| Quest | 2019 - 2024 | right #5 wrap-around zip | none |
Older sleeping bags
| Model | Year | Zip side/Type | Zip compatibility |
| Alpine | 2010-2023 | Left #5 full zip | none |
| Spark I | 2015 – 2023 | Left #3 half zip | none |
| Spark II | 2017 - 2023 | Left #3 half zip | none |
| Spark III | 2017 – 2018 | Left #3 full zip | none |
| Spark III | 2019 - 2022 | Left #5 full zip | Any STS bag with a right #5 full zip |
| Spark IV | 2019 - 2022 | Left #3 full zip | none |
| Spark IV | 2023 | Left # 5 full zip | Any STS bag with a right #5 full zip |
| Flame I | 2015 – 2023 | right #3 half zip | none |
| Flame II | 2017 - 2023 | right #3 half zip | none |
| Flame III | 2017 – 2018 | right #3 full zip | none |
| Flame III | 2019 - 2022 | right #3 half zip | none |
| Flame III | 2023 | right #5 half zip | Any STS bag with a left #5 full zip |
| Flame IV | 2019 - 2022 | right #3 full zip | none |
| Flame IV | 2023 | right #5 full zip | Any STS bag with a left #5 full zip |
| Ascent | 2019 – 2023 | Left # 5 full zip | Any STS bag with a right #5 full zip |
| Altitude | 2019-2023 | right #5 full zip | Any STS bag with a left #5 full zip |
| Trek | 2010-2023 | Left #5 full zip | Any STS bag with a right #5 full zip |
| Women's Trek | 2016-2018 | right #5 full zip | Any STS bag with a left #5 full zip |
| Journey | 2019-2023 | right #5 full zip | Any STS bag with a left #5 full zip |
| Traverse XT | 2010-2016 | Left #5 full zip | Any STS bag with a right #5 full zip |
| Micro | 2010-2016 | Left or right #3 full zip | Only 2010–2016 Micro models with the opposite zip |
| Micro | 2017 - 2018 | Left or right #5 full zip | Any STS bag with an opposite #5 full zip |
| Traveller | 2016 – 2023 | Left #3 full zip | Another 2016 – 2023 Traveller of the same length |
| Talus | 2012-2018 | Left #5 full zip | Any STS bag with a right #5 full zip |
| Latitude | 2016-2018 | Left #5 full zip | Any STS bag with a right #5 full zip |
| Women's Talus | 2016-2018 | right #5 full zip | Any STS bag with a left #5 full zip |
| Women's Latitude | 2016-2018 | right #5 full zip | Any STS bag with a left #5 full zip |
| Amplitude | 2019-2022 | Left and right #5 full zip | Another Amplitude/Basecamp or any STS bag with a #5 full zip |
Note – the table above lists the main side zip. Some sleeping bags also have a zip in the footbox, others have a second short side zip. To join two sleeping bags, the main side zip is always used.
For sleeping bags to be compatible, both must have a full zip. Sleeping bags with a wrap-around or half zip cannot be joined to other sleeping bags.
The zip descriptions apply to Sea to Summit sleeping bags. A sleeping bag from another brand can be joined to a Sea to Summit sleeping bag if it has the same zip size and the teeth are oriented the same way inwards. If in doubt when joining two bags, do not force the zip slider – it could damage the zip slider or the zip.
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