Old Navy Mock-Neck Rib-Knit Tunic Sweater We'd happily slip any marled Old Navy Mock-Neck Rib-Knit Tunic Sweater ($35, originally $45) on over leggings because of its longer length. Image Source: oldnavy.gap.com Old Navy Mock-Neck Rib-Knit Tunic Sweater $35 from oldnavy.gap.com Buy Now