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Atom Series: Synthetic insulated mid layers | LT: Lightweight. Insulated, wind-resistant pants using Coreloft™ 60 for lightweight, insulative comfort during colder conditions. Ideal during Alpine adventures as an over layer to preserve body heat during periods of low activity.
These Coreloft™ insulated pants are designed to keep you warm on the coldest days, or to be used as an extra outer layer during low activity moments in the mountains.
Learn More About This Product
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
Articulated knees and seat
Zippers & Fly Configuration
Laminated wind flap
Bottom snap closure on zip
Full length separating side zippers to allow removal over boots and crampons
Cuff & Sleeves Configuration
Adjustable pant cuff drawcord
Waist & Belt Configuration
Internal stow pocket with attachment point
Coreloft™ 60 (60 g/m²) insulation. Made with highly crimped multi-denier siliconized polyester yarn, this lightweight, breathable, and thermally efficient, 100% polyester staple fibre is very compressible and has excellent loft retention.
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.