Click here to print the River Nomad size guide.
Don't know your ring size? No worries :)
OPTION 1
diameter (widest part of the circle) in millimeters.
For example: If diameter is 17mm then size is 7.
OPTION 2
Then go to the chart below and find the closest equivalent in US size.
For example: If circumference is 56mm then size is 8.
| US SIZE | AUS/UK SIZE | DIAMETER | CIRCUMFERENCE | 
| 3 | F | 14mm | 44.3mm | 
| 4 | H ½ | 14.9mm | 46.8mm | 
| 5 | J ½ | 15.7mm | 49.3mm | 
| 6 | M | 16.5mm | 51.8mm | 
| 7 | O | 17.3mm | 54.3mm | 
| 8 | Q | 18.1mm | 56.9mm | 
| 9 | R ¾ | 18.9mm | 59.4mm | 
| 10 | T ½ | 19.7mm | 61.9mm | 
| 11 | V | 20.6mm | 64.7mm | 
| 12 | X | 21.4mm | 67.2mm | 
| 13 | 
 
Z ½
 
 | 
22.2mm | 69.7mm |