Close banner

Support Outside Online

Love Outside?

Help fund our award-winning journalism with a contribution today.

Contribute to Outside
Gear Guy

Can I get a warm and compressible synthetic sleeping bag?

Are their any compressible synthetic sleeping bags that won't leave you shivering and suffering? I mildly allergic to down, and I often carry a ton of work-related gear, so the space I have in my pack for a sleeping bag is limited. What are the best, most-compressible bags in the 15- and 0-degree ranges? Ben Higginboth Fort Leavenworth, Kansas

A: These days, when it comes to a synthetic bag you have basically two choices: Polarguard, which comes in three flavors (HV, 3D, and the new Delta) or Primaloft. There are some others -- Quallofil and Thermolite, to name two -- but they're on the margins. Polarguard is a fine synthetic insulation. It's been around for some time, has a reputation for good durability, and is very affordable. A classic Polarguard bag is The North Face's 0-degree Snowshoe ($209), which uses Polarguard Delta. Weight is not bad at three pounds, eight ounces. The knock on synthetic bags is that they aren't as compressible as down bags, but Delta is pretty soft, and you can always buy a compression stuff sack to help squeeze it down.

Primaloft is good stuff, too. It's softer than Polarguard, so it drapes better over the body and to me feels more comfortable. It's very warm, and seems to retain a little more insulating capability when very wet than Polarguard. But it's a little trickier to manufacture a Primaloft bag, so they cost a bit more. Integral Designs' North Twin is a fine Primaloft bag, rated to ten degrees, priced at $220. Like the Snowshoe, it weighs three pounds, eight ounces. From a practical standpoint, I doubt the two bags "real" temperature rating is all that different, as Integral Designs is quite conservative with its ratings. But either bag would work well for you.

Support Outside Online

Our mission to inspire readers to get outside has never been more critical. In recent years, Outside Online has reported on groundbreaking research linking time in nature to improved mental and physical health, and we’ve kept you informed about the unprecedented threats to America’s public lands. Our rigorous coverage helps spark important debates about wellness and travel and adventure, and it provides readers an accessible gateway to new outdoor passions. Time outside is essential—and we can help you make the most of it. Making a financial contribution to Outside Online only takes a few minutes and will ensure we can continue supplying the trailblazing, informative journalism that readers like you depend on. We hope you’ll support us. Thank you.

Contribute to Outside