The Active Strap Pro for Apple Watch is expertly crafted with an advanced hybrid construction combining waterproof leather and FKM rubber, making it our most versatile band. It blends the sleek contour of a modern leather strap with a high-performance FKM lining and ventilation channels to create a strap that is as functional as it is stylish. Featuring waterproof Heinen leather from Germany, an FKM fluoroelastomer rubber coating, custom stainless steel eyelets and buckle, the strap is designed for the Apple Watch Series 6, SE, and all previous versions.