Size Chart - Olly
| SIZE | U.S. | Length | Chest | Neck Opening | Width at Hem |
| XS | 0-2 | 20.5" | 17.5" | 6.5" | 16.5" |
| S | 4-6 | 21" | 18.5" | 6 3/4" | 17.5" |
| M | 8-10 | 20.5" | 19.5" | 7" | 18.5" |
| L | 12-14 | 22" | 20.5" | 7 1/4" | 19.5" |
| XL | 16 | 22.5" | 21.5" | 7.5" | 20.5" |
| SIZE | U.S. | Length | Chest | Neck Opening | Width at Hem |
| XS | 0-2 | 20.5" | 17.5" | 6.5" | 16.5" |
| S | 4-6 | 21" | 18.5" | 6 3/4" | 17.5" |
| M | 8-10 | 20.5" | 19.5" | 7" | 18.5" |
| L | 12-14 | 22" | 20.5" | 7 1/4" | 19.5" |
| XL | 16 | 22.5" | 21.5" | 7.5" | 20.5" |