The vulcanized DC Tonik shoe is a proven design with its durable suede and canvas mix upper and its ventilation holes to assist avoid feet from overheating. Upper: Leather/ Lining: Textile/ Outsole: Rubber. Vulcanized building provides better board feel, sidewall grip and more flex. Outsole uses a sticky rubber supplying excellent grip that’s likewise resistant to abrasion. Low-top Shoes. DC’s trademarked Pill Pattern tread. Material: Leather, Canvas.