Marathon Vulcanized Rubber Dive Watch Strap 20mm Black. This high quality strap is totally waterproof and looks great both dressed up and casual. It features a textured back for grip and a 316L stainless steel signed buckle. Comfortable to wear and flexible. Durable and fully waterproof. Vulcanized rubber made in Italy. Specifications for Marathon Vulcanized Rubber Dive Watch Strap: Manufacturer: Marathon Additional Features: Vanilla Scented 316l Stainless Steel Buckle Fabric/Material: Rubber Age Group: Adults Package Contents: Marathon Vulcanized Rubber Dive Watch Strap Marathon WS-RB-BKSS-20: Vulcanized Rubber Dive Watch Strap 20mm Black