5/8" Width: XXS (7-8.5") XS (8.5-11") S (10-14") M (11.5-17") 1" Width: S (12-16.5") M (16-23") L (18-29") XL (21.5-35") 1.5" Width: M (16-23") L (18-29") XL (21.5-35") The ComfortCore™ Collar is the ultimate blend of dog fashion and utility. Step away from boring, mass-produced collars and turn heads as you dominate your daily adventure in style. Featuring double reinforced parachute-grade stitching, NeverFade™ print technology for long lasting vibrant colors, two D-Ring attachments, and your choice of buckle and hardware colors. Tags For Hope Mission: Is to make the world a Better Place for Animals. We feed, treat and rescue animals in need. Join our community today, and make a difference with us.