This sleeveless core-heater hugs the body with efficient Coreloft™ insulation to preserve warmth while durable fleece side panels—made with Polartec® Power Stretch® with Hardface® Technology—increase active use breathability and mobility. A wind and moisture resistant outer shell extends stand-alone usability.
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Arc'teryx Coreloft™ Insulation
Developed by Arc'teryx, Coreloft™ is a synthetic insulation made of staple fibres in mixed sizes that are crimped to trap air and retain warmth. Available in different thicknesses for end-use performance and comfort.
Lightweight and highly compressible
Durable and resilient
Retains its warmth in humid and wet conditions and dries quickly if wet
Arc'teryx Fit Guide - Trim Fit
These trim fitting garments share motion-friendly traits with our Athletic fit, but are patterned with lower volume for reduced bulk. Our trim fit is sized for a base layer and a trim synthetic or down filled mid-layer
To find out how to calculate your body measurements, view our Sizing Charts:
Insulated mid layers made with hydrophobic synthetic material that resists absorbing moisture. Outer fabric has a water-repellent finish.
LT | Light Weight
Built with highly durable top performance materials but designed with a streamlined minimalist set of features to provide very light weight.
Full Feature List
Compressible and packable
DWR finish (Durable Water Repellent) helps repel water from fabric surface
Breathable, stretch side panels for enhanced comfort and mobility
Trim fit for base layer or light mid-layer use
Soft brushed-lined collar
Zippers & Fly Configuration
Full front zip with wind flap
Drop back hem
Internal chest pocket
Two hand pockets
Polartec® Power Stretch® with Hardface® Technology—88% polyester, 12% elastane, 230 g/m². A four-way stretch fabric that allows for excellent athletic movement and good breathability to maintain comfort. Some products feature Hardface® Technology for a higher level of abrasion resistance.
Luminara™—Stretch nylon ripstop fabric with wind and water resistant, air permeable PU coating and DWR finish. A super lightweight and breathable stretch fabric with great water repellency and wind resistance.
60 g/m² Coreloft™ insulation
Tinthan™ 100% nylon / 1.9 oz/yd², 46g/m². 20D mechanical stretch nylon rip stop with an air permeable polyurethane coating DWR finish. This lightweight stretch fabric has good abrasion resistance for its weight.