Man's best friend deserves some Carhartt. Made of 100% nylon. Side release buckle with Carhartt logo engraved on front and gunmetal D ring; Adjustable fit. Sonic-welded seams are 80% stronger than stitched seams for maximum breakage protection and strength. Embroidered Carhartt logo near buckle. Dimensions: Small/Medium = 3/4" wide collar with adjustable length of 12"-18"; Large = 1" wide collar with adjustable length of 18"-26".