Shop Men's at RalphLauren.com, the Official Site of Ralph Lauren. Rust Marl Shawl Collar Sweater - Pullover rib-knit from a rust-colored marled cotton-and-wool blend. Features a shawl collar and leather-covered buttons that give it a vintage-inspired look. Shawl collar. Two-button detail at the right side of the neck. Leather-covered buttons. Long sleeves with ribbed cuffs. Buttoned welt pocket at the left chest. Ribbed hem. 72% cotton. 20% lambswool. 8% wool. Hand wash. Imported.