Lululemon sues over yoga pants patent
20/08/2012
Yogawear maker Lululemon has filed a lawsuit against Calvin Klein over patents in the design of its yoga pants.
The Canada-based company claims Calvin Klein and G-III Apparel Group, a manufacturer of the brand, infringed three patents in the design of waistbands in its 'performance' brand pants – which Lululemon says are similar to its 'astro pants'.