Shop Know Wave gift cards at itk online store. Product range includes 4 Know Wave gift cards in different colors: multi. Enjoy 100% authenticity and competitive prices from €41.32 to €826.45. Find more leading streetwear brands including: Mizuno, Saucony, Some Ware, Patagonia, Novesta, Slam Jam Special Projects, Comme des Garçons Wallets, etc.