Seattle, Wash. (July 15, 2024) – Therm-a-Rest, a pioneer in outdoor comfort and innovation for more than 50 years, redefines backpacking comfort and warmth in spring 2025 with its new sleeping bag, Boost 650. The innovative new design provides unparalleled warmth, comfort, and versatility in the backcountry – for better sleep guaranteed.
After years of research and engineering, the Boost 650 addresses two of the biggest concerns backpackers have with their sleep systems—comfort and warmth. Addressing comfort, the semi-rectangular shape provides additional space for various natural sleeping positions without compromising thermal efficiency. Addressing warmth, Therm-a-Rest’s new WarmZip technology, a patent-pending center zipper, reduces the bag’s internal space and tucks insulation around the sleeper to warm the bag up to 10 degrees Fahrenheit—empowering users to control the temperature and their sleep experience.
“For more than 50 years, we’ve been the experts on sleep and thermal efficiency at camp,” said Justin McGregor, Product Line Manager at Therm-a-Rest. “The Boost 650 is a direct result of that. We’ve spent the last few years working to create a product that excites backpackers, and create the next generation of backpacking comfort—because backpacking shouldn’t mean compromised sleep. Boost 650 combines the industry’s most comfortable fit, first to market adjustable temperature, and all in a light-weight and packable-size. Reluctant backpackers shouldn’t be reluctant anymore!”
In addition to the WarmZip technology, the Boost 650 features multi-use armholes for ventilation or to read a book or play cards in the warmth of your sleeping bag. The 650-fill, RDS-certified hydrophobic down is allocated to key areas with Zoned Insulation to maximize heat retention and weight. The hydrophobic down absorbs 90% less water and dries three times faster than untreated down.
The shell and lining are made with a GRS-certified 100% recycled nylon, and coated with a PFAS-free DWR. Inclusive sizing includes short, short wide, regular, regular wide, long, and long wide. The Boost 650 is available in 32 and 20 degrees and starts at one pound and nine ounces (32 degrees, size short).
To learn more about Therm-a-Rest’s new Boost 650 sleeping bags, check out a product video here. Therm-a-Rest’s spring 2025 lineup will be available at select REI locations starting September 2024, and everywhere else, including Thermarest.com, starting January 2025.
To learn more about Therm-a-Rest and its award-winning collection of camp comfort gear, visit thermarest.com.
