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Therm-a-Rest Synergy Sleeping Bag Liner

Regular price $7495
The soft and cozy Synergy™ Sleeping Bag Liner adds warmth, comfort and years of life to any sleeping bag. Contributing up to 5F/3C degrees of warmth to your sleeping system, the soft, stretch-knit polyester also serves as a protective barrier to your expensive sleeping bag’s materials, absorbing the sweat and oils that would otherwise go directly into your bag and decrease its loft. Now, instead of washing and drying your entire bag or allowing that grime to clump up the insulation, all you have to do is remove the liner and toss it in the washing machine.
  • Extend the Life of Your Bag: Protects fabric and insulation from dirt and body oils, minimizing wash cycles and extending the life of your bag.
  • Added Warmth: Adds up to 5F/3C degrees of warmth to any sleep system, verified by tests in our in-house cold chamber.
  • Next Level Comfort: Lavish stretch-knit fabric and flatlock perimeter seams deliver a super comfy ‘baselayer’ inside your sleeping bag.
  • Thoughtfully Shaped: Carefully shaped to fit in your favorite mummy bag.
  • Fits bags up to 6’6” and weighs just 21.1oz (342g); machine washable.

Tech Specs

11405
One Size
Stargazer
12.1 oz
0.34 kg
31 in
80 in
1 in
78 in
198 cm

Shipping & Delivery

  • Free shipping within Canada on orders $100+*
  • $20 shipping on orders under $100
  • $45 express shipping available

Most orders are processed and shipped the same day, or the next business day for weekend orders and orders placed after carrier pickup. You’ll receive a tracking number once your order has shipped.

*Oversized sale items (like skis, ski boots & poles), as well as dangerous goods are not eligible for free shipping.

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Returns & Exchanges

We accept returns on full-price items within 30 days of delivery, provided the product is unused, in original condition, with tags and packaging. Sale items, climbing and safety equipment, fuel and food are final sale and not eligible for return (view full exceptions). A return authorization (RA) number is required by contacting us.

Customers are responsible for return shipping costs.

Exchanges are considered on a case-by-case basis and are subject to product availability.

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