70% wool 30% cashmere. Dry clean only. Rib knit fabric. Open back with buckle closures. 10CR-WK39. TP72910WC. Named after the address of the Derek Lam International, LLC headquarters in downtown Manhattan, 10 Crosby Derek Lam is the first ever diffusion line from Derek Lam. 10 Crosby offers accessible styles that are always intelligent and always feature a surprising twist. And true to Derek Lam core principles, each piece upholds value and integrity of design, making every collection look and feel special.