Spark vs Ascent: Which Sea to Summit Bag Wins?

Spark vs Ascent: The Ultimate Sleeping Bag Showdown

Choosing the right sleeping bag can make or break your camping experience. In this showdown, we’re comparing two of Sea to Summit’s most popular models: the ultralight Spark and the versatile Ascent. Both are top-tier options—but which one suits your adventure style best? Watch the video to find out!

Sea to Summit Spark: the best for Ultralight Adventures

The Sea to Summit Spark is the go-to choice for hikers and bikepackers chasing minimal weight and maximum performance. Weighing as little as 350g, it's ideal for warm-weather missions and minimalist gear lists. With premium down insulation and an ultracompact design, the Spark ranks among the best sleeping bags suited to fast and light travel.

A Sleeping Bag for camping in all conditions: the Ascent

If comfort and versatility are your priorities, the Sea to Summit Ascent wins. With a roomy tapered rectangular shape, Free-Flow Zip system, and the ability to join two bags together, the Ascent is perfect for changing weather and longer trips. It’s one of the most adaptable sleeping bags for camping on the market.

Why Shop at PAST Outdoors?

At PAST Outdoors, we only stock gear we trust to perform in real-world Australian conditions. Whether you're heading off-grid or planning a relaxed weekend in the bush, our handpicked range of Sea to Summit sleeping bags and accessories is backed by expert advice and a passion for outdoor adventure. When you shop with us, you're not just buying gear—you’re joining a community that loves to explore.

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Best hydration system!

I bought this along with the Hardside Hydration system and absolutely love it. So much easier to keep clean than a bladder, and I don’t have to stress about it breaking in my backpack.

Pants Performed Great

I bought the pants to my first cold weather hike to Cradle Mt, they were great. Comfortable and warm!

They were also the pants I wore when I proposed to my now Fiancé! So they get some extra sentimental points.

I love this chair

So good for resting my back after a long day clambering around fallen trees and scrambling up and down steeps with a fully loaded pack. The leg arrangement is great for uneven and soft surfaces.

Packs away to nothing

It weighs next to nothing and takes up virtually zero space in your main pack. Depending on what you pack into it you can forget its on your back. Perfect for side trips.

Stylish, comfortable, everyday ready.

We have lived in these shirts when traveling aus in all conditions, our only regret is we didn’t buy a few more. They are breathable, fit well and are quality, they haven’t faded like our other clothes, so they are great material that will last longer than regular shirts.

Spark vs Ascent: Which Sea to Summit Bag Wins?

Spark vs Ascent: The Ultimate Sleeping Bag Showdown

Sea to Summit Spark: the best for Ultralight Adventures

A Sleeping Bag for camping in all conditions: the Ascent

Why Shop at PAST Outdoors?

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