The Sea To Summit Spark Pro Down is a lightweight down sleeping bag with exceptional quality at low weights. Here is our review of this bag after putting it to the test in various environments. This bag comes in a 15 degree and 30 degree temperature rating as well as a regular and long version for the tall folks!
Our Testing
Our tent setup in Colorado with the Sea To Summit Spark Pro. The night reached around 40 degrees as this was a little over 11,000 feet.
We put this bag to the test on many different nights. From cowboy camping under the stars, to rainy tent nights, under freezing nights, and even hot nights.
Where to Purchase
Sea To Summit bags can be purchased at the following:
About Sea To Summit
Sea To Summit has built an impressive reputation amongst outdoor enthusiasts for creating extremely high quality gear. If you’d like to hear and read more about the Sea To Summit story, watch the below video, and check out their story page.
About the Sleeping Bag
This bag boasts 950+ down fill power which creates a foundation for comfort, warmth, and a very lightweight product. The 10 D nylon shell and lining is breathable and water resistant, and the zipper system allows for snag free and tear free use. In addition this zipper system has some great versatility, with the ability to release the feet from the toe box, and get comfortable in ways that most other sleeping bags don’t allow.
Check out this quick product video created by Sea To Summit
Specifications
Here are the some specs for the Spark Pro
| 15°F REGULAR | 15°F LONG | 30°F LONG | 30°F REGULAR | |
|---|---|---|---|---|
| BAG WEIGHT | 1lb 11.7oz | 1lb 14.4oz | 1lb 7.7oz | 1lb 5.8oz |
| COMPRESSED VOLUME | 7.0 L | 7.9 L | 5.5 L | 5.3 L |
| COMPRESSION SACK | 13 L | 13 L | 8 L | 8 L |
| FILL WEIGHT | 16.9 oz | 19.4 oz | 12.6 oz | 10.9 oz |
| FITS UP TO HEIGHT | 6 ft 1 in | 6 ft 6 in | 6 ft 6 in | 6 ft 1 in |
| TEMPERATURE RATING (EN LOWER LIMIT) | 15°F | 15°F | -30°F | -30°F |
| WOMEN’S TEMP RATING (EN COMFORT) | 27°F | 27°F | 37°F | 37°F |
Shipping
Free shipping is offered by almost all retailers with this bag purchase
Returns and Warranty
Sea To Summit offers a 60 day return policy and a lifetime manufacturers gaurantee. You can read about these policies on their website.
Our Review
Comfort | 5 / 5
This is an extremely comfortable bag. Not only is the down comfortable, but the ziper system makes moving and changing positions super easy. It allows for a backpacking pillow to fit nicely tucked into the head portion of the bag, and the ability to unzip your footbox, and even walk around in the bag with your feet out make this all around one of the most comfortable, if not the most comfortable bag I have ever used.
Packability | 5 / 5
Simply put, the down in this bag is incredibly. It is so warm, so comfortable, and with the compression sack it comes with, this bag packs down small for its temperature rating. Tough to beat the combination of packability, comfort, durability, and temperature rating.
Durability | 5 / 5
We haven’t had this bag for long enough to determine long term durability, but currently there is no sign of wear and tear, and that’s with heavy use. We will update this article with further information around durability. The zipper system seems like it is better than any other bag zipper system we have used. Given the construction materials, and design of zippers, this seems like a very durable sleeping bag.
Price and Value | 4 / 5
The only downside of this bag is that it is quite expensive. You are purchasing the high quality down, the great zipper features and overall design. We still give this a 4/5 because this truly is one of the best bags we have ever seen even though it is a bit more expensive than we would normally go for a bag. If you are looking for the highest quality, this is what you should go for.
Favorite Features
We love that you can unzip the footbox. For the warmer days in the summer, it adds a ton of versatility to the bag and make it not so hot on the hotter nights.
We love that this bag comes with two cases – the compression sack, and the storage case which keeps the bag uncompressed just enough for longer term storage.
The shoulder button system that allows you to sit up while still being warmed by the sleeping bag, combined with the open toe box allows for campers to literally walk around camp in their sleeping bag. It is absolutely awesome.
Recommendation and Overall Thoughts
If you are looking for the highest quality bag that combines packability, comfort, warmth, and durability, this is at the top of the market. We absolutely love how versatile this bag is, and will be using it for any nights between 20 and 75 degrees.
Max DesMarais is the founder of hikingandfishing.com. He has a passion for the outdoors and making outdoor education and adventure more accessible. Max is a published author for various outdoor adventure, travel, and marketing websites. He is an experienced hiker, backpacker, fly fisherman, backcountry skier, trail runner, and spends his free time in the outdoors. These adventures allow him to test gear, learn new skills, and experience new places so that he can educate others. Max grew up hiking all around New Hampshire and New England. He became obsessed with the New Hampshire mountains, and the NH 48, where he guided hikes and trail runs in the White Mountains. Since moving out west, Max has continued climbed all of the Colorado 14ers, is always testing gear, learning skills, gaining experience, and building his endurance for outdoor sports. You can read more about his experience here: hikingandfishing/about
