The 'Diamonds' singer proved once again that she really can pull off any outfit as she strolled out of the Dorint Hotel in Cologne on 27 June.
RiRi teamed her slouchy Adidas tracksuit bottoms with a cropped and branded top, which showed off her flat stomach. She kept her look casual with Converse and a leather baseball hat, teamed with a pair of thick-rimmed glasses.
The 25-year-old is in the middle of her gruelling 'Diamonds World Tour' so perhaps it's no surprise she wanted to don something comfortable during her downtime.
Rihanna has been on the road since March and will continue through until the end of the year.
It's been a weekend of highs and lows for the star.
She picked up a major prize at the BET Awards on Sunday (30 June), beating stars including Beyoncé and Alicia Keys to the 'Female R&B Pop Artist' gong (she didn't attend due to tour commitments in Europe), but also took time to mark the one-year anniversary of her beloved grandmother Dolly's death.
Check out a gallery of Rihanna's high summer range for River Island below!