Old Navy High-Waisted Secret-Slim Plus-Size Striped Swim Bottoms If you're looking for a matching suit definitely go with these High-Waisted Secret-Slim Plus-Size Striped Swim Bottoms ($32). Image Source: oldnavy.gap.com High-Waisted Secret-Slim Plus-Size Striped Swim Bottoms $32 from oldnavy.gap.com Buy Now