Old Navy Waist-Defined Slub-Knit T-Shirt Dress A light grey Old Navy Waist-Defined Slub-Knit T-Shirt Dress ($20, originally $30) looks cute with white sneakers but there are several other colours on sale this summer as well. Image Source: oldnavy.gap.com Old Navy Waist-Defined Slub-Knit T-Shirt Dress $20 from oldnavy.gap.com Buy Now