Bold, Fresh Colours Energize our Original Sidestripe Shoe The Colour Theory Collection allows you to create a unique colour story by pairing vibrant, unexpected hues with our iconic footwear styles. Made with a classic pairing of canvas and suede, the Colour Theory Old Skool honors our heritage Sidestripe silhouette while offering a fresh look that boosts the appeal of this unmistakable go-to shoe.