Private equity firm Equistone Partners Europe Limited has acquired Unlimited Footwear Group, whose licensed brands include Björn Borg.

Unlimited Footwear Group is a Dutch specialist in the design, sourcing and distribution of mid-market footwear for men, women and children. The group's footwear is sold through retail chains across Europe and North America under private labels, under its proprietary brand Bullboxer and under its licensed brands including Björn Borg and Gaastra.

The deal was made for an undisclosed sum.

Equistone said the investment represents "an attractive opportunity" given its newly-aligned shareholder and organisational structure, the potential for new partnerships with third-party brands and scope to increase further market penetration in North America, and central and southern Europe.

Philippe Stüdi, head of Equistone Partners Europe Switzerland, said: "This deal represents an exciting opportunity to back an impressive, entrepreneurial management team with long-standing expertise and a vast network in the international shoe industry. We very much look forward to working with Bart and Igor and their team to further develop and grow the business."