Gap reported net sales of $1.25 billion for the month of May, down from $1.27 billion in May 2014.
The company said comparable sales fell 1% in May 2015 thanks to the strength of the Old Navy brand, compared to a 1% increase in May 2014. Old Navy comparable sales grew 6% in the month compared to a 2% increase in May 2014.
Gap brand comparable store sales fell 6% in May 2015 compared to a 3% decrease in May 2014. Banana Republic comparable sales fell 5% compared to a 3% increase in May 2014.
"We're pleased with Old Navy's continued momentum and we remain focused on consistently delivering higher levels of performance across our portfolio," CFO Sabrina Simmons said.