Tracer Sleeping Bag Liner

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A lightweight, packable liner that balances comfort, warmth and sustainability for all-season versatility.

Nemo says: 

Our newest accessory, the Tracer sleeping bag liner, is incredibly soft and patterned to match our Classic Spoon® shape contours for extra comfort and light warmth on any overnight adventure. The physical layer helps shield your bag from oils and sweat, and Tracer is also treated with Polygiene® Odor Control Technology, an antimicrobial finish that inhibits odor-causing bacteria. By allowing users to extend the time between laundering, this bluesign® approved odor-free finish protects a sleeping bag`s performance and longevity while also reducing micro-plastic shedding into the water stream.

Tracer is made with lightweight THERMOLITE® EcoMade fabric, a material woven from 100% recycled yarns with hollow core fibers. These hollow fibers efficiently trap heat to moderately extend the temperature range of your sleeping bag without adding bulk or excess weight to your pack. Though Tracer is optimized for NEMO Classic Spoon bags (Disco™, Forte™), it can be used as a layer inside any sleeping bag, from rectangle to mummy style.

Our Verdict

The updated Tracer blends thoughtful design with functional updates. The use of recycled Thermolite EcoMade fabric provides a soft feel with decent thermal performance, helping to raise the lower limit of your bag while remaining breathable on warmer nights. At 258g (Regular), it packs down small but adds meaningful comfort.

The Spoon shape provides extra space around the knees and elbows, making it less restrictive than most liners. The structured footbox is a welcome addition. Treated with an antimicrobial finish, it stays fresher for longer. It also means your sleeping bag stays cleaner, which is especially useful with down bags.

– Reviewed by Ultralight Outdoor Gear

Features

• Hardware-free for head-to-toe comfort.
• Made with 100% recycled yarns.
• Optimized for Classic Spoon® sleeping bags but can be layered inside any bag.
• Packs into a tidy stuff sack equipped with drawstring and webbing handle for easy carry.
• POLYGENE® antimicrobial finish extends time between laundering, increasing sleeping bag longevity and reduces
• micro-plastics in the environment.
• POLYGENE® Odor Control antimicrobial finish is bluesign® approved.
• Protected by the NEMO Lifetime Warranty.
• Reduced washing saves water, energy, and detergent waste.
• THERMOLITE® EcoMade fabric with hollow core fibers offers unmatched warmth-to-weight heat retention.

Specifications

Regular

• Weight: 258g
• Paked Size: 6.5 x 3.0 x 3.0 in / 16.5 x 8 x 8 cm
• Fits Up To: 6′ / 183 cm

Long

• Weight: 279g
• Paked Size: 6.5 x 3.0 x 3.0 in / 16.5 x 8 x 8 cm
• Fits Up To: 6’6″ / 198 cm

Material & Construction

• 100% recycled polyester, treated with bluesign® approved antimicrobial finish

Help & advice:

• NEMO Equipment – Meet the Team
• About Nemo
• Nemo Video Resources
• Recycled Content in Outdoor Gear