Arc'teryx Women's Sima Pullover - Arctic SilkBuilt to perform across a wide array of disciplines, the Arc'teryx Sima Hoody is as versatile as they come. The style is minimally designed for maximum adaptability, with only the bare essentials present. The absence of superfluous details is more than made up for by the technical Diem taslan fabric, a recycled polyester wicking yarn boasting all the qualities one could want from an all rounder breathable, quick drying, air permeable and packable.