Orange - Small

Index ring size < size 9

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Green - Medium

 Index size 9 - 12


Yellow - Large

Index size > size 12

Temperature and fit recommendation:

Optimal temperature to wear nonumb is between 64° F & 49° F.

There are many personal and environmental variables that might affect the recommended temperature and size.

If the accessory causes discomfort that could affect normal blood circulation, we recommend to choose the largest size.

This should be used as a guide only.