Boys Tops:
| Size | Age | Height | Weight | Chest | Waist | |
| XS (4/5) | 4 | 3-4 yr | 39"-41" | 33 -37 | 22" | 22" |
| 5 | 4-5 yr | 42" -44" | 38-42 | 23" | 22.5" | |
| S (6/7) | 6 | 5-6 yr | 45"-46.5" | 43-48 | 24" | 23" |
| 7 | 6-7 yr | 47"-49.5" | 49-57 | 25.5" | 23.5" | |
| M (8) | 8 | 7-8 yr | 50"-52" | 50-67 | 26.5" | 24.5" |
| L (10/12) | 10 | 9-10 yr | 53"-55.5" | 68-77 | 27.5" | 25.5" |
| 12 | 11-12 yr | 56"-58.5" | 78-87 | 28.5" | 26.5" | |
| XL (14/16) | 14 | 12-13 yr | 59"-61" | 88-97 | 30.5" | 28" |
| 16 | 14 yr and up | 62"-64" | 98 and up | 32" | 29.5" | |
| XXL (18/20) | 18 | 65"-66.5" | 33.5" | 31" | ||
| 20 | 67"-69" | 35" | 32.5" |
