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Spark Pro Down Sleeping Bag (15°F & 30°F)
$689.00

Spark Pro Down Sleeping Bag

$689.00
Lightweight yet incredibly versatile, the Spark Pro brings enhanced comfort with the Free Flow Zip System+ View tech specs
  • Temp Rating
  • Size
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Highlights

BEST USE: Ultralight Backpacking

PERFORMANCE: 3 Season

WEIGHT: 1lb 14.4oz | 861g

COMPRESSED VOLUME: 7.9L

LOWER TEMP RATING: 15°F | -9°C

Description

The Spark Pro has been optimized for comfort, versatility and light weight. Our highest-lofting down - 950+ fillpower RDS-certified goose down with a non-PFC Ultra-Dry Down treatment - is wrapped in extremely brea...

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Product Details
Spark Pro Down Sleeping Bag (15°F & 30°F)
Spark Pro Down Sleeping Bag (15°F & 30°F)
$689.00
Description || Spark Pro Down Sleeping Bag (15°F & 30°F)

Description

The Spark Pro has been optimized for comfort, versatility and light weight. Our highest-lofting down - 950+ fillpower RDS-certified goose down with a non-PFC Ultra-Dry Down treatment - is wrapped in extremely breathable 10D fabrics. The Free-Flow Zip system ensures maximum ventilation and the flexibility to open the bag flat as a quilt. Zip a Spark Pro to a Women's Spark and share the comfort with your companion.

Design Details

Technical Features

950+ LOFT ULTRA-DRY DOWN
FREE FLOW ZIP
RESPONSIBLE DOWN STANDARD (RDS)
Non-PFC

Tech specs

  • Best Use
    Ultralight Backpacking
  • Comes With
    Ultra-Sil™ Compression Bag & Storage Cell
  • Insulation
    RDS certified, 950+ PFC free Ultra-Dry Down
  • Shape
    Mummy
  • Zip Options
    Free-Flow zipper system
https://cdn.accentuate.io/42585355255981/1705696182593/spark-pro-sleeping-bag-regular.svg?v=1712097913903https://cdn.accentuate.io/42585355288749/1705696194600/spark-pro-sleeping-bag-long.svg?v=1712097933762
15°F Regular15°F Long30°F Long30°F Regular
Free flow section logo
Customize your comfort with precision

Customize your comfort with precision

Unzip, unfold, and effortlessly tweak your airflow and sleeping positions as you adapt to changing temperatures and preferences

Stay in sync with your surroundings

Stay in sync with your surroundings

Seamlessly transition from a cocoon of warmth to an open vista of fresh air. Transform your sleeping bag to a quilt, two bags coupled together or back to a standard setup

Move around the campsite with ease

Move around the campsite with ease

With Free Flow, your sleeping bag becomes your trusted companion as you relax, wander about and bask in the great outdoors. It's more than a sleeping bag—it's an extension of your adventure

Frequently Asked questions

Can two Spark Pros be zipped together?

The Spark Pro is only available with a left zip, but can be zipped to other STS Women's sleeping bags

Is the Spark Pro available as a women's model?

We don't currently offer a women's-specific Spark Pro. The unisex model works for female end-users (who should use the Comfort rating for orientation)

What's the difference between the Spark and the Spark Pro?

The Spark Pro has a footbox zipper and a short right-side zipper (great ventilation, open-flat as a quilt, sit up with arms extended from the bag)

Shipping & Returns

Our warehouse is actively shipping orders from 8am to 1pm MST Monday through Friday. Most orders ship in one business day, but the transit time can take up to 7 days, depending on your distance from Boulder, Colorado.

2nd Day and Next Day Air orders will ship same day if placed by 1pm MST, Monday-Friday (except holidays).

All orders are eligible for fast and easy returns within 60 days of purchase.

For more details, please check out our Help Center

Get to know the Spark Pro

Technical Hood

Technical Hood

Complete with cinch to seal in warmth

Ultralight Construction

Ultralight Construction

Featherweight and highly breathable 10 denier nylon shell and liner with non-PFC DWR for enhanced comfort

Free Flow Zip System

Free Flow Zip System

Temperature regulation is yours to control and sleeping configurations are yours to adjust

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