Calvin Klein, 83, was spotted out alone in New York City this week, appearing somewhat frail and hunched over as he walked.

The fashion designer, typically seen with his boyfriend Kevin Baker, 37, was dressed in loose black jeans, a navy blue shirt, and black Nike sneakers for his solo outing.

Klein was last seen with Baker in October, leaving the Chateau Marmont in Los Angeles. The couple was also seen leaving Gold's Gym in Venice for a workout around the same time.

In November of the previous year, Klein and Baker attended the launch of Vogue photographer Steven Klein's new book at The Brant Foundation art gallery. During the event, Calvin Klein stumbled at the entrance, appearing disoriented by camera flashes, with security assisting him.

Klein, who sold Calvin Klein Inc. to PVH Corp. in 2003 for approximately $700 million, has largely remained out of the public eye, rarely giving interviews and focusing on his career and brand. He pocketed $215 million from the sale and stayed on for several years as a consulting creative director.

Throughout his life, Klein has had relationships with both men and women. He was previously married to Jayne Centre Klein from 1964 to 1974, and Kelly Rector from 1986 to 2006. After his divorce from Rector, he dated actor Nick Gruber, who was 48 years his junior, before eventually beginning his relationship with Baker.