Warm thermal layer bottom suited to cold temperatures, slower paced activities. Plush interior has rich, warm texture. Trim, next-to-body fit and elastane content increases thermal efficiency by keeping fabric in constant contact with the body.
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Polartec® Alpha® Insulation
Polartec® Alpha® insulation
Polartec® Alpha® is a lofty fleece knit insulation that is specifically designed to be combined with air permeable fabrics that are useful during high aerobic activities.
Knitted insulation does not pull apart and can be combined with highly air permeable fabrics
Arc'teryx Fit Guide - Next to Skin Fit
These snugly-fitting garments are made with stretch fabrics to fit next to the skin to enhance moisture management and thermal efficiency.Used for base layers which integrate well with Expedition, Trim, Athletic and Relaxed Fit.
To find out how to calculate your body measurements, view our Sizing Charts: