Fussie Cat Market Fresh Grain Free Duck Recipe Dry Cat Food Fountains and Bird Baths SIZE CHART* Size Neck (A) Seasonal & Holiday SIZE CHART* Size Neck (A) Chest (B) Back (C)* X Small 14 in (36cm) 15 20 in (38 51 cm) 10 in (25 cm) Small 16 in (41 cm) 19 27 in (48 69cm) 13 ¼ in (34cm) Medium 19 in (48 cm) 26 35 in (66 89 cm) 19 ¾ in (50 cm) Large 23 in (58cm) 30 39 in (76 99 cm) 22 ½ in (57 cm) X Large 26 in (66cm) 35 45 in (89 114cm) 27 in (69 cm) * Back coverage (C) will vary Purpose: cooling protein to help alleviate allergy symptoms increasing the amount each day with the present diet as a sudden change in diet may result in digestive disturbances 5 to 2 times as much food as an adult cat and start feeding kittens as adults after one year