Thermarest Tracer Blaze Sleeping Bag Liner

Jump to: Our Verdict / Features / Specifications

A soft, spacious liner that boosts warmth and extends your bag’s range without compromising comfort or packability.

Nemo says: 

Our newest accessory, the Tracer Blaze sleeping bag liner, is incredibly soft and patterned to match our Ultralight Spoon® shape contours for extra comfort and significant warmth on any overnight adventure. Tracer Blaze is made with thicker THERMOLITE® EcoMade fabric, a material woven from 100% recycled yarns with hollow core fibers. These hollow fibers efficiently trap heat to extend the temperature range of your sleeping bag without adding bulk or excess weight to your pack. In addition to providing a physical layer that shields your bag from oils and sweat, Tracer is 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. Though Tracer is optimized for NEMO Ultralight Spoon bags (Riff™), it can be used as a light yet warm layer inside any sleeping bag, from rectangle to mummy style.

Our Verdict

The updated Tracer Blaze takes what was already a solid design and adds real performance gains. The switch to thicker Thermolite EcoMade fabric noticeably improves thermal efficiency, and the Spoon shape offers more room to shift positions without bunching or twisting. Yet, it manages to come in lighter than the previous version. It’s warm enough to bump up your bag’s lower limit by a few degrees, but breathable enough that it doesn’t trap clammy moisture on milder nights.

The Polygiene finish helps reduce odour build-up on extended trips, and the smooth interior feels comfortable against skin. It’s also far easier to wash a dirty liner than a sleeping bag. At 351g (Regular), it’s not the lightest liner around, but the durability and packed size are spot on for multi-day use.

– Reviewed by Ultralight Outdoor Gear

Features

• Hardware-free for head-to-toe comfort.
• Made with 100% recycled yarns.
• Optimized for Ultralight 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: 351g
• Paked Size: 7.0 x 3.0 x 3.0 in / 18 x 8 x 8 cm
• Fits Up To: 6′ / 183 cm

Long

• Weight: 383g
• Paked Size: 7.0 x 3.0 x 3.0 in / 18 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