Through 5/8, take an extra 40% off pants when you apply code MAY at checkout at OldNavy.com. Some exclusions apply. For example, the pictured Slim Flex Khakis drop from $46.94 to $35 to $21 with this code. This is a 55% total discount, the best price online. There are three colors available. There are also Skinny Flex Khakis in multiple colors for $19; however, the code does not apply. These khakis are 100% cotton. Shipping is free on orders of $50, but otherwise, it adds $7. Sales tax is charged in most states.