Sportswear company Fila USA has announced the release of Fila Body Toning System (BTS), a collection of workout apparel for women.

The range is designed to increase muscle exercise by up to 50%, aimed at shaping the body and dramatically improving workout efficiency.

To do this, Fila said BTS used double-layered panels of Invista’s Lycra Sport fabric to compress active muscles.

“Fila looks forward to working with Invista to further refine the collection and to develop new BTS applications for many different sports,” said Freya Tamayo, Fila director of design.

BTS apparel will be delivered first to Dick’s Sporting Goods stores across the US, and then to athletic speciality stores in early October.

The launch will be supported by a marketing programme including print, in-store support, social networking, online advertising, celebrity seeding and retail promotions.