Neo Classic Collar
| Size | Neck Size (in) | Neoprene Width (in) | Nylon Width (in) |
| S | 13.5 - 15" | 1 1/8" | 3/4 |
| M | 15.5 - 17.25" | 1 1/4 | 1 |
| L | 18 - 20.25" | 1 1/4 | 1 |
| XL | 21 - 24" | 1 1/4 | 1 |
| Size | Neck Size (in) | Neoprene Width (in) | Nylon Width (in) |
| S | 13.5 - 15" | 1 1/8" | 3/4 |
| M | 15.5 - 17.25" | 1 1/4 | 1 |
| L | 18 - 20.25" | 1 1/4 | 1 |
| XL | 21 - 24" | 1 1/4 | 1 |