Therm-a-Rest Boost 650™ 20F/-6C Sleeping Bag  
Therm-a-Rest Boost 650™ 20F/-6C Sleeping Bag  
Therm-a-Rest Boost 650™ 20F/-6C Sleeping Bag  
Therm-a-Rest Boost 650™ 20F/-6C Sleeping Bag  
Therm-a-Rest Boost 650™ 20F/-6C Sleeping Bag  
Therm-a-Rest Boost 650™ 20F/-6C Sleeping Bag  
Therm-a-Rest Boost 650™ 20F/-6C Sleeping Bag  
Therm-a-Rest Boost 650™ 20F/-6C Sleeping Bag  
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Therm-a-Rest Boost 650™ 20F/-6C Sleeping Bag  
Therm-a-Rest Boost 650™ 20F/-6C Sleeping Bag  
Therm-a-Rest Boost 650™ 20F/-6C Sleeping Bag  
Therm-a-Rest Boost 650™ 20F/-6C Sleeping Bag  
Therm-a-Rest Boost 650™ 20F/-6C Sleeping Bag  
Therm-a-Rest Boost 650™ 20F/-6C Sleeping Bag  
Therm-a-Rest Boost 650™ 20F/-6C Sleeping Bag  
Therm-a-Rest Boost 650™ 20F/-6C Sleeping Bag  
Therm-a-Rest

Boost 650™ 20F/-6C Sleeping Bag

€345.00
Hurry, only 1 left in stock

Important: Christmas - New Year Shipping Updates & Cut-Off – Read More

Free delivery on orders over €75.00
5000+ Satisfied customers
Easy Returns - with an post
Customize your comfort and warmth with the versatile, eco-conscious Boost 650™ sleeping bag.

The Boost 650™ delivers plush, customizable comfort for three-season adventures.
Its WarmZip™ tech transforms the bag’s shape to boost warmth by up to 10°F.
Eco-conscious, spacious, and cleverly designed for side sleepers and cold nights.

Features List

  • WarmZip™ center zipper boosts warmth by up to 10°F/6°C
  • Semi-rectangular shape converts to mummy-style for thermal efficiency
  • Zoned 650-fill RDS-certified hydrophobic down insulation
  • Multi-use armholes for reading, venting, or adjusting without unzipping
  • Soft, 100% recycled nylon shell and liner with PFAS-free DWR
  • Available in multiple lengths and widths for inclusive sizing
  • Includes compression sack and storage sack
  • YKK anti-snag zippers, draft collar, and cinchable hood

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Temperature Rating: 20°F / -6°C
Insulation: 650-fill RDS-certified hydrophobic down
Shape: Semi-rectangular with convertible mummy-style WarmZip™
Shell & Liner: 100% recycled nylon with PFAS-free DWR
Features: Multi-use armholes, WarmZip™ center zip, draft collar, cinchable hood
Sizes: Short, Regular, Long – each available in Wide
Included: Compression sack, storage sack
Use: Three-season backpacking and camping
Weight: 1210g
Warranty: Limited Lifetime

In 1971, a mix of unemployed Boeing engineers, a leaky foam gardening pad, and the dream of better nights under the stars came together to change how we experience the outdoors forever. By 1972, Cascade Designs was formed and began selling the Therm-a-Rest Standard 3/4 – the world’s first self-inflating sleeping pad. The rest, as they say, is history.

We offer free delivery on all orders over €75, and €5.95 for all orders under €75.
 -We aim to ship all orders placed before 1:00pm on the same business day and have it delivered next-day, but in busy periods this can take longer, so allow for up to 3 working days for fulfillment.

We accept returns within 31 days of receiving the item, either in-store or by post. 
- All items returned must be suitable to be sold again as new. For our full returns policy - click here.
- In-store returns are Free of charge, and returns posted with An Post via our returns page are €5 from a post office, or €6 collected from your home.
- All returns can be organised with An Post click & post, and will be fulfilled as soon as they arrive back at our store. Click here to start a return.

-Extended Christmas Returns -  Enjoy extended returns for this Christmas! Return items online or in-store until Saturday the 10th of January.