Footwear brand Skechers saw its share of the US branded athletic footwear market by value at wholesale rise by 10% to a share of 9% or $1.1 billion (£560 million) in 2007 according to a survey by Sporting Goods Intelligence.
Outside of Nike, Skechers was the only single brand with sales of more than $1bn (£500m) in 2007.
Nike saw its share climb by 7.5% to 39.66%, equating to sales of $4.85bn (£2.48bn) for the year.
Adidas saw its group sales grow by just 1.1% to $1.71bn (£870,000), giving it a share of 14%. However its Reebok brand lost ground with sales down 5.3% to $775m (£394.4m), leaving its share at 6.3% versus 7% in 2006.
Crocs saw the most significant rise in sales for the year, up 65.3% to $400m (£203.5m), giving it a market share of 3.27%.