Shop Unisex's at RalphLauren.com, the Official Site of Ralph Lauren. Cotton Peplum Cardigan - This precious cotton cardigan features an allover cable-knit design and a cute peplum hem. Ribbed rounded neckline. Five-button placket. Long sleeves with ribbed turn-back cuffs. Seed-stitched peplum hem. Our signature embroidered pony accents the left chest. 100% cotton. Machine washable. Imported.