Giving back to those giving their all: COVID-19 update
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Joining Forces to Support Our Communities

Our Cascade Designs family of brands is truly inspired by the heroic efforts put forth by our communities during this crisis—from the medical responders to the grocery store employees. Resolved to help, we’ve joined forces and refocused our manufacturing muscle to assist with making protective gear. Like so many, we wish to give back to those giving their all.


100,000 Level 1 Surgical Masks

Our Seattle production team quickly shifted gears to sew medical masks in response to the shortage of PPE for health care professionals. On April 30, we met our goal of 100,000 masks! The materials were provided by Kaas Tailored and the masks have been going to 51 Providence Hospitals, as part of their 100 million mask challenge.


Safety Gowns for Firefighters

Firefighters protect our lives; we’re humbled to help protect theirs. Working with King County Emergency Management, we’re using Therm-a-Rest mattress materials to help make protective gowns for local firefighters. The durable material is easily disinfected after each call, making the gowns reusable. It also withstands the harsh environments firefighters face far better than disposable gowns.


Special Discount for Healthcare Workers

To express our immense thanks to the medical professionals working tirelessly to fight COVID-19, we're offering healthcare workers a special discount across all of our brands for the next year. If this includes you, please sign up here. And thank you for all you do!


PackTowl® Cloth Face Masks

Still need to join the mask movement? Grab a PackTowl washable, reusable face mask. Our team began sewing them for our employees, and now we've made them available to everyone. For every $5 mask sold, we're donating $1 to the CDP COVID-19 Response Fund supporting vulnerable populations impacted by the pandemic.

Pick up your face mask here!


As a family of brands, we know how critical it is to help one another. We’re grateful to be part of an incredible community of adventurers—regardless of which uniform you wear to work. From all of us at Therm-a-Rest, MSR, SealLine, Platypus and PackTowl, let's keep doing our part, so we can see each other on the trails once again.

Therm-a-Rest hyperion-32 hyperion-32 hyperion-32

Hyperion™ 32F/0C Sleeping Bag

During ultralight objectives, the 16-ounce Hyperion provides peak performance for uncompromising adventurers.
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1 $339.95 - $379.95
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The Hyperion 32F/0C sleeping bag is among the lightest in its class while still providing high-performance during backcountry pursuits. The bag uses thermally-efficient box baffled construction in key areas to ensure warmth and comfort in an ultralight package. Designed with high-quality materials and Therm-a-Rest performance features, the Hyperion keeps your pack featherweight without sacrificing an ounce of performance. Storage sack and compression stuff sack included
  • Ultralight: One of the lightest pieces in its class, the Hyperion sets a new standard for high-performance outdoor equipment.
  • 900-fill Nikwax Hydrophobic Down : Stays drier and maintains loft 60 times longer than untreated down.
  • Unrivaled Packability: Lightweight materials and precise design allow for a smaller packed size than ever before.
  • Box Baffled Construction: Uses mesh walls to maximize loft and minimize cold spots in key areas.
  • Comfort Fit: Ergonomic shape and longer zipper provide a more human-friendly fit than other ultralight bags.
  • SynergyLink Connectors: Integrate the bag with a mattress for optimal efficiency and comfort; removable for versatility.
  • Zoned Insulation: Maximizes warmth and saves weight by intentionally placing fill where you need it most, 70% on the top and sides with 30% on the back.
  • Responsible Down Standard Certified: Certification that ensures that the waterfowl in the down supply chain are treated humanely.
  Small Regular Long
SKU 10699 10721 10722
Color Black Forest Black Forest Black Forest
Weight (Standard) 15 oz 1 lb 1 lbs 2 oz
Weight (Metric) 0.44 kg 0.46 kg 0.52 kg
Width (Standard) 27.5 in 28.5 in 29 in
Width (Metric) 70 cm 72 cm 74 cm
Length (Standard) 73 in 80 in 85 in
Length (Metric) 185 cm 203 cm 216 cm
Height (Standard) 4 in 4 in 4 in
Fits (Standard) 66 in 72 in 78 in
Fits (Metric) 168 cm 183 cm 198 cm
Girth, Shoulder (Standard) 55 in 57 in 58 in
Girth, Shoulder (Metric) 140 cm 145 cm 147 cm
Girth, Hip (Standard) 48.5 in 49.5 in 51 in
Girth, Hip (Metric) 123 cm 126 cm 130 cm
Girth, Foot box (Standard) 40 in 43 in 46 in
Girth, Foot box (Metric) 102 cm 109 cm 117 cm
Packed dimension (Standard) 5.5 x 6 in 5.5 x 6 in 5.5 x 6 in
Packed dimension (Metric) 14 x 15 cm 14 x 15 cm 14 x 15 cm
EN Comfort (C) 5 C 5 C 5 C
EN Comfort (F) 41 F 41 F 41 F
EN Limit (C) 0 C 0 C 0 C
EN Limit (F) 32 F 32 F 32 F
EN Extreme (F) 5 F 5 F 5 F
EN Extreme (C) -15 C -15 C -15 C
Fill material 900 Fill Goose Nikwax Hydrophobic Down RDS 900 Fill Goose Nikwax Hydrophobic Down RDS 900 Fill Goose Nikwax Hydrophobic Down RDS
Fill weight (Standard) 7.5 oz 8.5 oz 10 oz
Fill weight (Metric) 0.22 kg 0.25 kg 0.29 kg
Shell fabric 10D Nylon RipStop w/ DWR 10D Nylon RipStop w/ DWR 10D Nylon RipStop w/ DWR
Lining fabric 10D Nylon RipStop 10D Nylon RipStop 10D Nylon RipStop
Zipper side Left Left Left
Country of Origin China China China

Limited Lifetime Warranty

Every piece of Therm-a-Rest gear is designed to endure the rigors of your time in the backcountry. We offer a Limited Lifetime Warranty on all products, except electronic devices, which have a 2-year Limited Warranty.

Better Sleep Guarantee

All Therm-a-Rest sleeping bags and quilts are also covered by our Better Sleep Guarantee. When you wake up on a Therm-a-Rest sleeping bag or quilt, we're confident you'll wake up feeling better than ever. If you are not completely satisfied, return it within three months with the original receipt of purchase and we will give you a full refund- no questions asked.

To get your gear repaired, start a warranty claim or to learn more, visit Therm-a-Rest Warranty for more info.

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