Nike v Lululemon are in disputes over knitted trainers that, according to Nike, are infringing the FlyKit patent portfolio.
Nike Names Lululemon in Patent Suit Over Primeknit Tech
Turbulent times: Nike v Lululemon over FlyKit patent portfolio
What factors have contributed to Nike's lower margins on sports apparel? - Quora
How to overcome inertia in footwear design. The Directive Collective., Richard Kuchinsky posted on the topic
Nike sues Lululemon for patent infringement on its Flyknit technology, News briefs
Southern District of New York (S.D.N.Y.)
Lululemon Vs Nike: Which Stock Should You Buy?
Turbulent times: Nike v Lululemon over FlyKit patent portfolio
Nike Sues Lululemon Over Its Alleged Use Of Patent Flyknit Technology
Nike Sues Lululemon for Patent Infringement
Nike Names Lululemon in Patent Suit Over Primeknit Tech