Dogs Starfish Crab Lighthouse Anchor Print Hawaii Tank Top and Shirt Dog and Owner Matching OutfitsSize Neck Girth Chest Back Length Weight S 9. 4 14. 2 9. 8 5 10 lbs M 10. 2 16. 1 12. 2 11 16 lbs L 11. 8 18. 1 14. 2 17 24 lbs XL 13. 4 20. 9 16. 1 25 32 lbs 2XL 14. 2 22. 8 18. 1 33 40 lbs Size US Chest Length Shoulder Width Sleeve Length S 34 41. 7 29. 1 19. 1 9. 8 M 36 44. 9 29. 9 19. 9 10 L 38 48 30. 7 20. 7 10. 2 XL 40 51. 2 31. 5 21. 5 10. 4 2XL 42~44 54. 3 32. 3 22. 2 10. 6 3XL 46~48 57. 5 33. 1 23 10. 8 4XL 50~52 60. 6 33. 9 23. 8 11 5XL