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Thermarest Questar™ O Down Sleeping Bag

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Temperature Rating °C

RRP: 320.00

Our Price 275.00

Packed with features needed for cold-weather camping, the Questar™ 0 offers supreme comfort and versatility for your next adventure.

Thermarest have loaded this winter bag with the performance-enhancing features Therm-a-Rest bags are known for, from SynergyLink™ Connectors to ThermaCapture™ Seams. Crafted with water-resistant 650 fill Nikwax Hydrophobic Down™ the Questar is ready for your next cold-weather adventure. The versatility and value of the Questar makes it a must-have for those looking to venture out after the temperatures drop. Storage sack and stuff sack included.

Small 250.00
Regular 275.00
Long 290.00



• 650 fill Nikwax Hydrophobic Down: Stays drier and maintains loft 60 times longer than untreated down.
• ThermaCapture Seams: Traps radiant body heat and retains warmth without adding bulk or weight.
• SynergyLink Connectors: Integrate the bag with a mattress for optimal comfort and efficiency; removable for versatility.
• Zoned Insulation: Maximizes warmth and saves weight by intentionally placing fill where you need it most.
• Quilt and Blanket Loops: Customize your sleep system by layering our quilts or tech blankets for increased warmth.
• Toe-asis Foot Warmer Pocket: Ergonomic toe box that rapidly warms cold feet in a pocket of warm down.
• Responsible Down Standard Certified: Certification that ensures that the waterfowl in the down supply chain are treated humanely.

Product Specification
• Bag Construction: Box Wall
Fill Power: 650Fill Nikwax Hydrophobic Down
Fill Weight: S-740g; R-820g; L-850g
Max Height of Person: S-168cm; R-183 cm; L-198 cm
Overall Length of Bag: S-185cm; R-201cm; L-216cm
Shoulder Width of Bag: S-147cm; R-160cm; L-168 cm
Foot Width of Bag: S-58cm; R-58cm; L-65cm
Overall Bag Weight: S-1240g; R-1360 g; L-1450 g
Pack Size (Without Compression):