Reactor Midweight Liner

• Thermolite® Pro fabric uses far-infrared technology and hollow-core fibers to trap and reflect body heat without unnecessary bulk.
• Adds up to 6°C / 11°F of warmth when paired with a properly insulated sleeping bag and sleeping mat.
• Stretch-knit construction and shaped arm openings allow natural movement throughout the night.
• An ergonomic mummy shape and fitted hood improve warmth and comfort without excess weight.
• HeiQ Fresh odor-control technology helps the liner stay fresher during extended use.
• Shoulder snap connectors pair with compatible Sea to Summit sleeping bags for easier entry and exit.
• Machine-washable construction uses certified recycled fibers and bluesign® APPROVED materials.

Best Use: Backpacking, Cycle Touring & Paddle Touring

Added Warmth: Up to 11°F | 6°C

Shape: Mummy with Fitted Hood and Shaped Arm Openings

Main Material: 100% Post-Consumer Recycled Polyester

Stuff Sack Material: 100% Polyester

Technologies: Thermolite® Pro, Thermolite® EcoMade & HeiQ Fresh

Short Weight: 11.6 oz | 330 g

Short Dimensions: 70 × 31 in | 178 × 80 cm

Short Packed Size: 7 × 5 × 5 in | 19 × 11.5 × 11.5 cm

Short Recommended User Height: 66.93 in | 170 cm

Regular Weight: 12.3 oz | 350 g

Regular Dimensions: 76 × 31 in | 193 × 80 cm

Regular Packed Size: 7 × 5 × 5 in | 19 × 11.5 × 11.5 cm

Regular Recommended User Height: 72.83 in | 185 cm

Long Weight: 12.9 oz | 365 g

Long Dimensions: 78 × 31 in | 198 × 80 cm

Long Packed Size: 7 × 5 × 5 in | 19 × 11.5 × 11.5 cm

Long Recommended User Height: 77.95 in | 198 cm

Care: Machine wash without special soap or fabric softener; air dry or machine dry on a cool-to-warm cycle without dryer sheets