Boost 650 Sleeping Bag

$339.95
Color: Morning Blue
Temperature Rating:
Size:
  • Free shipping on orders $150+
  • Free pickup at our Arlington, TX store today
  • Free 30-day returns
Description
Ultra-comfy warmer weather backpacking sleeping bag with adjustable shape and warmth. Compression Sack included.
Features
  • Customizable Comfort: Enjoy the spacious freedom of the semi-rectangular bag or the cozy warmth of a mummy bag—pick the shape and temperature that keeps you comfy at night with just a zip.
  • WarmZip™ Tech: Patent-pending center zipper design zips up to reduce the bag’s internal space and tuck insulation around the sleeper to boost warmth by up to 10F/6C.
  • Multi-Use Arm Holes: Reach the WarmZip, read a book, play cards or simply ventilate—do it all while tucked into your sleeping bag for elevated livability.
  • Plush & Puffy: 650-fill, RDS-certified hydrophobic down is allocated to key areas with Zoned Insulation for refined heat efficiency and maximum coziness.
  • Eco-Conscious Materials: Shell and liner are made of GRS-certified, 100% recycled, soft-to-the-touch nylon and coated with PFAS-free water repellent.
  • Inclusive Sizing: Each length—Short, Regular, Long—is also available in a Wide width, so you get the bag you want in the fit you need.
  • Additional Features: YKK anti-snag zippers, cinchable hood, zipper draft tube, puffed draft collar, and a two-way entry zipper.
About the brand

Therm-a-Rest turned a good night’s sleep in the backcountry from a dream into a reality. Their sleeping pads, bags, and camp comfort systems are built to perform anywhere you pitch a tent. At Mountain Sports, we love Therm-a-Rest because rest is the secret to adventure — and nobody does it better.

Shop all Therm-a-Rest

SKU 14203

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Shipped nationwide since '96. Some exclusions apply.