slip-on "UV Ink Checkerboard" sneakers The Classic Slip-On features sturdy low profile slip-on canvas uppers, padded collars, elastic side accents, and signature rubber waffle outsoles. But this pair has something special, when exposed to UV light, their allover checkerboard polka dot print changes in colour and appears on the outsole. Imported Composition Outer: Canvas 100% Sole: Rubber 100% Lining: Fabric 100%