Fashion Clothing Amazon Prime Day’s Selling Those Iconic Calvin Klein Undies For Next to Nothing By Alexis Bennett Alexis Bennett Alexis Bennett is a New York-based writer who covers all things fashion, shopping, and beauty. She was previously the Ecommerce editor at InStyle. InStyle's editorial guidelines Updated on July 16, 2018 @ 03:30PM Pin Share Tweet Email Photo: chrissyteigen/Instagram For decades, celebs have been obsessing over Calvin Klein's logo-emblazoned undies. Everyone from Kate Moss to Justin Bieber has worn the OG logo print, and not just in those famous magazine ads. I'm sure you've probably spotted a few A-listers—like Khloé Kardashian and Ciara—posing on Instagram in their Calvins, too. Now, it's time for us "normals" to stock up on the celebrity-approved undies. And get this: You won't have to pay full price because a few designs are marked down at Amazon Prime Day for as low as $13. VIDEO: Is Amazon Prime Worth It? All you have to do to enjoy the savings is to log into your Prime Account. Not an Amazon Prime member? That's OK. It's not too late to sign up. Test out the free trial for 30 days. After that, it's only $13 a month or $119 a year. And you can cancel at anytime.