K Swiss Lundahl NT K-Swiss has always been known for their fresh and simple designs. The Lundahl NT is another perfect example that reinforces that credence. They feature a combination leather/synthetic leather upper, tennis-inspired profile, and a molded rubber cupsole. It's almost a must to have a versatile white sneaker in your collection and the Lundahl NT definitely fits that description. They can easily be matched with anything, and that's a great thing.