GRAMMAR FAIR ISLE KNITTED TURTLENECK SWEATER IN IVORY Size Large Derek Lam 10 Crosby's 'Grammar' sweater features a classic Fair Isle pattern that's modernized by a diagonal placement across the bust. It's spun with touches of warm alpaca and wool and topped with a cozy turtleneck. Tuck yours into jeans or midi skirts. Acrylic alpaca wool nylon Excellent preowned condition. Worn once and dry cleaned.