Today, Capital One Shopping and Capital One Offers are featuring 15%/15x miles back for lululemon purchases, making it a great day to use up those quarterly credits from the American Express Platinum Card®. This is Capital One Shopping’s “Offer of the Day,” so you won’t see it by searching for lululemon. Instead, scroll down on the home page until you find the offer. In order to access Capital One Offers, you’ll need a Capital One card to find them and click through.