SEA TO SUMMIT Spark Pro -1C Down Sleeping Bag Regular Beluga Black Sleeping bag
ASL041071-050103 How to choose the right sizeThe Spark Pro sleeping bag represents the pinnacle of sleeping bags designed for ultralight treks where comfort and adaptability are the main requirements.
Its innovative design offers the perfect balance between weight and thermal insulation, making it your ideal companion on trips where you want to save weight but don't want to give up comfort and functionality.
- The Spark Pro is filled with premium goose down with an Ultra Dry Down treatment to increase its moisture resistance, which is indispensable in wet environments.
- The sleeping bag's outer material, 10D nylon, provides excellent breathability and protection, while its lightweight nature contributes to easy packing and carrying.
- Thanks to the Free Flow Zip system, you can easily adapt the sleeping bag to different temperature conditions, ensuring ideal comfort during the night.
- The Spark Pro sleeping bag stands out for its minimalist design and lightness, making it an essential piece of gear for travelers who care about every gram.
- Waterproof goose down
- Breathable and lightweight nylon
- Mummy cut sleeping bag
- Flexible zipper system
- Optimal thermal insulation
- Easy to pack design
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 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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