Key legal question
Whether the plaintiffs could claim trademark protection for 'zero' for sunglasses and stop use of 'zerorh+' for sunglasses.
Extracted holding
No; the mark had not been shown to be used for sunglasses, and the goods were not considered sufficiently similar to extend protection to that product category.
Extracted reasoning
Trademark protection follows the specialty principle. Clothing and sunglasses were not perceived as a single goods offering on the facts found, so protection could not extend to sunglasses.