Soft touch silicon rubber. Totally matt fish. Extremely flexible and very strong - you're likely to tire of wearing this strap long before you wear it out ! Heavy duty nickel-free stainless steel buckle (polished). Two strong floating strap loops. Ridged anti-slip inner suface. At first glance this strap looks very much like a padded leather strap with saddle stitched triple padding. Stepped shoulder design lends a distinctive and chunky look well suited to Military, chrono and dive watches.