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SITKA introduces the Bag That Never Sleeps

SITKA, the leader and pioneer in performance hunting apparel, launches the Kelvin Aerolite 30 Sleeping Bag

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BOZEMAN, Mont. (June 14, 2021) – After years of designing clothing systems that protect in extreme conditions, SITKA is proud to debut the Kelvin Aerolite 30 Sleeping Bag. Designed as an extension of your clothing system, the Kelvin Aerolite 30 is SITKA’s final layer of mobile warmth.

With jacket-like features, the Kelvin Aerolite 30 does a lot more than sleep. Its multifunctional design includes zippered arm holes, contoured shoulders and hood, and a center-front two-way zipper. A stowed hook at the bottom of the bag connects to an interior loop allowing you to shorten the bag for active time in camp, cold glassing sessions or dreaded midnight nature calls. 

“We built the Kelvin Aerolite 30 Sleeping Bag with the same design principles we use for building any of our clothing systems, performance, durability and functionality.” said John Barklow, SITKA’s Big Game Product Manager. “The sleeping bag is the final part of your clothing system and it was built to maximize efficiency so that you can stay focused on in-the-field objectives.”

Taking cues from one of nature’s most effective insulators, SITKA saw an opportunity to harness the insulation property of air. Weighing just 38oz, the bag features PrimaLoft® Gold Insulation with Cross Core™ technology. Mimicking the benefits of down while offering the warm-when-wet, low-bulk performance of synthetic insulation, PrimaLoft® Cross Core™ insulation fibers (35% recycled) are infused with silica aerogel, a nearly weightless material that’s composed of more than 95% air that reduces weight and acts as additional thermal insulation. Earning a 30-degree comfort rating (ISO 23537), the bag is designed to be worn with your SITKA clothing system for full-season performance. As temperatures dip below freezing, stack on additional layers to extend the comfort rating. 

SITKA’s Kelvin Aerolite 30 Sleeping Bag will keep you warm well after sunrise. After all, why should your sleeping bag only work for you at night? 

To learn more about the Kelvin Aerolite 30 Sleeping Bag ($399 MSRP) please visit


SITKA, based in Bozeman, Montana, created and leads the technical hunting apparel category. The company is recognized for its commitment to continually improving the life experience of the hunter and for its support of healthy ecosystems and wildlife populations. SITKA products work together in systems, and each piece is designed and tested rigorously in both the lab and the field. SITKA is owned by W.L. Gore & Associates, an advanced materials company well known for Gore-Tex™ fabrics and many other industry-leading innovations that provide durable comfort and protection to outdoor enthusiasts. Go to to learn more about how SITKA enhances the full life experience of the hunter. 

Media Contacts:
Trey Robinson, Backbone Media
(970) 331-0369 ext. 1181