Product Description
Upgrade your sleep system with the PolyStretch™ Sleeping Bag Liner — designed to add comfort, warmth, and versatility to your outdoor adventures. Made from soft, stretchy knitted polyester, this liner moves with you through the night while boosting the warmth of your sleeping bag by 8–15°F.
Use it on its own as a lightweight sleeping bag for warmer nights, or attach it inside your sleeping bag with the built-in snap loops for added warmth. Includes a drawstring cinch top for heat retention and a rounded foot box to keep your feet cozy.
Weighing just 11 oz (with an additional 12 g for the carry bag), it packs down small, making it a compact, lightweight essential for backpacking, camping, or travel.
Key Features
- Soft, stretchy polyester knit for comfort and mobility
- Use alone on warm nights, or attach inside your bag with snap loops
- Increases sleeping bag warmth by 8–15°F
- Drawstring top for customizable heat retention
- Rounded foot box for extra warmth
- Weighs 11 oz (carry bag adds 12 g)
- Lightweight, compact, and easy to wash
Dimensions inside the carrying bag are 7 x 4 inches (non-compressed)
Technical Specs
| Best Use | Temperature Boost, Moisture Control, Lightweight Packability |
| Material | Knitted Polyester |
| Added Warmth | 8-15ºF |
| Weight | 11 oz |
| Dimensions | 72 x 28 in |
| Packed Size | 7 x 4 in |
| Pack Size | 8 x 6 |
An Epic Adventure
Built for Adventure. Rooted in Community.
Epic was created from a simple belief: life is meant to be experienced, not watched from the sidelines.
What started as a passion for wind, water, nature, and exploration has grown into a community built around adventure, learning, and connection.
Through Epic Adventures, Epic Gardens, and Epic Adventure Scouts, we bring people together to explore the outdoors, develop new skills, and reconnect with the natural world.
Whether you’re riding wind and waves, learning how food grows, or guiding the next generation of explorers, Epic exists to help people live fully and intentionally.
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Our Mission
To inspire people to live healthier, more adventurous, and more connected lives through nature, movement, and community.
We believe adventure isn’t just about adrenaline — it’s about growth, confidence, and discovering what you’re capable of.
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The Epic Ecosystem
Epic Adventures
Guided outdoor experiences designed to push limits and unlock unforgettable moments.
From kiteboarding downwinders to coastal adventures and retreats, Epic Adventures is about getting outside and living the story.
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Epic Gardens
A farm-to-community movement focused on growing food, sharing knowledge, and reconnecting people to the land.
Epic Gardens celebrates local agriculture, sustainability, and real food grown with intention.
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Epic Adventure Scouts
A youth leadership and outdoor skills program designed to help the next generation build confidence, character, and resilience.
Through hands-on learning, entrepreneurship, and nature-based skills, we help young explorers develop the mindset and tools to thrive.
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Why Epic Exists
In a world that often pulls people indoors and online, Epic is about bringing people back to what matters:
• Adventure
• Nature
• Community
• Growth
• Freedom
We believe the most powerful experiences happen outside, together, and in motion.
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Join the Adventure
Epic isn’t just a brand — it’s a community of explorers, builders, and lifelong learners.
Whether you’re joining an adventure, supporting local food, or helping shape the next generation, you’re part of something bigger.
Welcome to Epic.
