Color black with white lettering pink with black lettering gray with black lettering red with white lettering Size Small (5-10 lbs 6 in width-9 in length) Medium (11-23 lbs. 7 in width-10 in length) Large (24-45 lbs. 8 in width-12 in length) Extra Large (46-70 lbs. 9 in width-16 in length) 2XL (71-85 lbs. 11 in width-17.5 in length 3XL 86 lbs. plus 13.5 in width-18 in length)