With top protection and high visibility, this Guardian Gear bright collar also make a bold fashion statement. Back-to-back layers of ultra strong nylon have the stitching bar-tacked at the corners for added durability. The sporty collar is fully adjustable for a comfortable fit while maintaining maximum control for even the biggest dogs. Guardian Gear collar is guaranteed for life. To determine the proper size, measure the circumference of pet"s neck and add 2-inch. 1-inch width is best for large dogs. Available in malibu blue color. Collar measures 26-inch length by 1-inch width.