'Riverdale' star Madelaine Petsch lands another fashion collaboration with affordable brand Shein. Pieces are all under $40 and include chic dresses, stylish dresses and suiting separates. Plaid prints, polka dots and leopard spots add some dimension to these trendy designs from the redhead. See more Shein x Madelaine below! Related: Madelaine Petsch Gets Glam for...