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Thermarest

Thermarest Boost 650 32F/0C Sleeping Bag | Extra Wide - 3 Lengths

Thermarest Boost 650 32F/0C Sleeping Bag | Extra Wide - 3 Lengths

  • High Quality Materials
  • Klarna Pay Available
  • Free delivery over £50

Regular price £261.00 GBP
Regular price £290.00 GBP Sale price £261.00 GBP
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Ultra-comfy three-season backpacking sleeping bag with adjustable shape and warmth.
Extra wide for space, comfort and to fit larger bodies!
  • 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 size—Small, Regular, Long—is also available in a Wide size, 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.
  • What's Included:

✓ Compression Sack

✓ Storage Sack

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Tech Specs


Short Wide Regular Wide Long Wide
Weight (Metric) 0.95 kg 1.12 kg 1.32 kg
Length (Metric) 188 cm 203 cm 216 cm
Fits (Metric) 168 cm 183 cm 198 cm
Girth Shoulder (Metric) 191 cm 193 cm 196 cm
Girth Hip (Metric) 185 cm 188 cm 191 cm
Girth Foot box (Metric) 155 cm 155 cm 155 cm
Packed dimension (Metric) 25cm x 17cm 28cm x 17cm 30cm x 19cm
EN Comfort (C) 5 C 5 C 5 C
EN Limit (C) 0 C 0 C 0 C
EN Extreme (C) -15 C -15 C -15 C
Fill material 650 Fill Duck PFAS Free Hydrophobic Down, RDS 650 Fill Duck PFAS Free Hydrophobic Down, RDS 650 Fill Duck PFAS Free Hydrophobic Down, RDS
Fill weight (Metric) 0.47 kg 0.54 kg 0.61 kg
Shell fabric 20D 100% Recycled Nylon Rip Stop 20D 100% Recycled Nylon Rip Stop 20D 100% Recycled Nylon Rip Stop
Lining fabric 20D 100% Recycled Nylon Rip Stop 20D 100% Recycled Nylon Rip Stop 20D 100% Recycled Nylon Rip Stop
Zipper side Left Left Left

Specifications

Usage information

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