Therm-a-Rest® expands Boost sleeping bag line with new synthetic option
Boost SN (left), Boost 650 in Spruce (right)
RENO, NV (June 17, 2026) – Therm-a-Rest®, maker of high-quality, innovative gear designed for comfort and performance, is expanding its award-winning Boost™ sleep system collection for Spring 2027 with the introduction of the new Boost SN™ 32F/0C synthetic sleeping bag. The brand will also introduce a refreshed Spruce colorway for its popular Boost 650™ down sleeping bag.
Developed in response to growing demand for a synthetic alternative to the original Boost 650, the new Boost SN 32F/0C delivers the series’ signature spacious comfort and adaptable warmth with 85% recycled polyester insulation. Featuring Therm-a-Rest’s expandable WarmZip™ technology, the Boost SN creates a roomier sleep experience without sacrificing packability or trail-ready performance. It will be available in a Midnight colorway.
Additional comfort-focused features include insulated arm holes, an interior slip pocket, and a durable recycled nylon shell fabric. The Boost SN will be available in Regular (MSRP: $219.95 USD, $299.95 CAN), Regular Wide (MSRP: $239.95 USD, $329.95 CAN), Long (MSRP: $259.95 USD, $349.95 CAN), and Long Wide (MSRP: $279.95 USD, $369.95 CAN) sizes.
“When Boost 650 launched in 2025, Therm-a-Rest set a new standard for spacious comfort and versatility in down sleeping bags,” said Chris Davis, Therm-a-Rest Product Line Manager. “We quickly heard strong demand from campers and backpackers looking for those same benefits in a synthetic option, particularly for wetter climates and variable conditions. Boost SN builds on the success of the original design by pairing our expandable WarmZip system with recycled hollow-fiber insulation in a surprisingly packable and affordable package, helping more people stay comfortable and sleep better outdoors regardless of the forecast.”
The original Boost 650 returns for Spring 2027 in a new Spruce colorway while retaining the same comfort-first design and performance features that helped establish the series.
Together, the additions to the Boost collection reflect Therm-a-Rest’s ongoing commitment to creating more adaptable, comfortable, and environmentally conscious sleep systems for campers and backpackers.
The new Boost SN and updated Boost 650 will be available at www.thermarest.com and select retailers beginning in January 2027.
AboutTherm-a-Rest®
Since1971, Therm-a-Rest® has been dedicated to providing outdoor enthusiasts with high-quality, innovative gear designed for comfort and performance. From sleeping pads to sleeping bags and camp furniture, Therm-a-Rest products are engineered to enhance outdoor experiences and help adventurers get the best night's sleep possible. For more information, visit thermarest.com.
About Cascade Designs, Inc.®
For over 50 years, Cascade Designs, Inc. and its brands, Therm-a-Rest®, Mountain Safety Research® (MSR®), Platypus®, SealLine®, and PackTowl®, have led the outdoor industry in designing innovative, useful, and long-lasting equipment, manufacturing the majority of its products in its Reno, Nev., U.S.A. and Cork, Ireland facilities, and with offices in Seattle, Wash. From the original self-inflating Therm-a-Rest® camping mattress to the first multi-fuel stove from MSR®, Cascade Designs has developed leading products that explorers, travelers, adventurers, outdoor enthusiasts, and weekend campers can rely on to deliver optimum performance in the outdoors through exceptional engineering and quality. For more information, please visit www.cascadedesigns.com.
Media Contact:
Jenna Nabors
Verde Brand Communications
