Straps are adjustable for a perfect fit! Handmade by a pup, for pups! Made of the finest leather we can buy, other colors and styles are available! Made with soft 1.2 mm thick leather one size fit 20" to 25" Head circumference If you have concerns with sizing please feel free to message me before purchasing so we can make sure you get the perfect fit! Custom: If you would like something more custom please feel free to message me! If you wish to customize the thread, Leather and hardware color, please contact us Color Same As Pictures. Look for the Men In Leather tag to ensure you are getting the best quality gear on the market!