Versatile, lightweight microfleece that works as a midlayer or as a standalone in cool weather. Delta Series: Mid layer fleece One of the most versatile fleece pullovers Arc’teryx has ever designed, the Delta LT provides effective warmth with little weight. Quick drying, air permeable Polartec® Classic 100 micro velour small grid and articulated construction focused on ergonomic freedom and performance comfort make the Delta LT extremely versatile. The Delta LT layers easily under a hardshell, but as a standalone adds light insulation for higher output in cool conditions. A low profile, high collar seals in warmth.