The hybrid collar is an industry-first product that provides the even pressure distribution of a flat collar with the no-tangle benefits of a rolled collar and you'd be hard-pressed to find a collar thicker than this one. Precise stitching adorns these weather-resistant leather collars and their matching leashes. The 3/4 in wide collar ends taper into a 1/2 in wide center. Collars are approximately 3/8 in thick in the center. Aluminum finished hardware stands up to rugged use.