Durable watch band for Bertucci Watches. Tridura Vented Ultra-Duty Band offers unmatched performance, durability and comfort. Made in the USA utilizing a U.S. Patented proprietary technology that heat fuses an advanced polymer layer to encapsulate a strong webbing core... eliminating tearing, fraying, cracking & splitting... typical issues with other bands when worn during severe activities, and environments. 34 precision laser cut moisture venting holes for added comfort. Durable black powder coated buckle & keeper. Tridura bands are one size fits all to larger wrists. For smaller wrists, an extra keeper loop is included or the excess material can be cut without fraying. Fits Bertucci A-2, A-3, A-6, A-7, B-1, D-1, D-3 & G-1 cases. Our U.S. Patented tool-less design permits band change in seconds. 5 year warranty.