Devotees of Black Fleece, Thom Browne’s collection for Brooks Brothers, should hurry to stores to stock up. Claudio Del Vecchio, the Brooks Brothers chief executive, confirmed in a phone interview on Thursday that the Black Fleece line will be discontinued following the fall 2015 season, though he did not rule out the option of reviving it, potentially without Mr. Browne, in the future.

The collection was introduced in 2007 and was intended as a three-year project. But positive reviews and encouraging sales prompted executives to extend its life. “It lasted so long because it was a very good relationship,” Mr. Del Vecchio said. “I’m sure Thom would agree with that. I believe we’re closing this on a high end. The fall collection is probably the best collection we ever had in Black Fleece.”

Mr. Browne, who cited his own growing business as the reason for the mutual decision to disband Black Fleece, added, “I think it’s always going to be something that’s fondly thought about, whether or not it comes back.”