Miranda Kerr strips naked for Reebok... shower scene alert!

Miranda Kerr's Victoria's Secret days may be over, but she's still stripping off for a good cause.

In this case, it's Reebok Skyscape sneakers — but you'd be forgiven for thinking she was advertising that itsy-bitsy pair of black briefs she takes off in the ad! Watch above.

"So comfortable you’ll forget you have them on," the tagline says at the end of the commercial. Shoes or undies?!

Miranda's had a rather successful streak of endorsements lately, becoming the face of Swarovski, Clear Scalp & Hair, ShopStyle and H&M. The 30-year-old also has her own collection of fine china for Royal Doulton and posed for a new Calvin Klein underwear campaign.

Meanwhile, just hours ago, Miranda's soon-to-be ex-hubby Orlando Bloom awkwardly crashed her interview at the Vanity Fair Oscar party...

In pics: Phwoar! The 30 Miranda Kerr lingerie shots the world is lucky to have