Product Description
Shape-Shifting Warmth to –6 °C
Master three-season comfort with the Boost 650™ –6 °C Down Sleeping Bag. Its WarmZip™ center zipper toggles between spacious semi-rectangular and snug mummy shapes, boosting insulation by up to 6 °C on demand. Zoned 650-fill RDS-certified hydrophobic down keeps core, shoulders, and footbox extra toasty, while arm holes, draft tube, cinchable hood, and anti-snag YKK zippers deliver customizable comfort from car camp to alpine missions. Made with 100 % recycled nylon shell and liner treated with PFAS-free DWR, it packs light, sleeps big, and performs to –6 °C.
Therm-a-Rest Boost 650™ –6 °C Sleeping Bag Features
- WarmZip™ Adaptability: Convert between semi-rectangular and mummy shapes to gain up to 6 °C extra warmth.
- 650-Fill Zoned Down: RDS-certified hydrophobic down precisely placed around core, shoulders, and footbox for optimized thermal performance.
- Multi-Use Arm Holes: Ventilate, access the WarmZip™, or wrap yourself in a cozy camp cocoon without fully unzipping.
- Premium Comfort Details: Cinchable hood, insulated draft tube and collar, and YKK two-way anti-snag zipper for a snug, adjustable fit.
- Sustainable Shell & Liner: 20D 100 % recycled nylon ripstop with PFAS-free DWR for lightweight durability.
- Inclusive Sizing: Available in Small, Small Wide, Regular, Regular Wide, Long, and Long Wide to suit every sleeper.
- Complete Carry System: Includes compression sack for travel and roomy storage sack for long-term care.
Therm-a-Rest Boost 650™ –6 °C Sleeping Bag Specifications (Metric)
- Weight:
- Small – 0.840 kg
- Small Wide – 0.990 kg
- Regular – 1.000 kg
- Regular Wide – 1.180 kg
- Long – 1.160 kg
- Long Wide – 1.350 kg
- Temperature Rating (EN): Comfort –1 °C; Limit –6 °C; Extreme –20 °C
- User Height Fit:
- Small / Small Wide – up to 168 cm
- Regular / Regular Wide – up to 183 cm
- Long / Long Wide – up to 198 cm
- Bag Length:
- Small / Small Wide – 188 cm
- Regular / Regular Wide – 203 cm
- Long / Long Wide – 216 cm
- Girth (Shoulder × Hip × Foot in cm):
- Small – 160 × 150 × 155
- Small Wide – 191 × 185 × 155
- Regular – 163 × 152 × 155
- Regular Wide – 193 × 188 × 155
- Long – 165 × 155 × 155
- Long Wide – 196 × 191 × 155
- Packed Size:
- Small – 20 × 17 cm
- Small Wide / Regular – 25 × 17 cm
- Regular Wide / Long – 28 × 17 cm
- Long Wide – 30 × 19 cm
- Fill Weight:
- Small – 380 g
- Small Wide – 510 g
- Regular – 430 g
- Regular Wide – 580 g
- Long – 480 g
- Long Wide – 650 g
- Fill Material: 650-fill duck PFAS-free hydrophobic down (RDS certified)
- Shell & Liner: 20D 100 % recycled nylon ripstop with PFAS-free DWR
- Zipper: Side-entry, left-hand
- Color: Meadow Green
- Country of Origin: Vietnam
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