Halo Safety Ring Size & Fit Guide

Size and fit guide

Measure Nose Distance and Chest Girth

Choose a size that matches both measurements. The halo should sit ahead of the face while the harness stays secure without rubbing the neck, chest, or shoulders.

Halo Safety Ring measurement diagram showing nose distance and chest girth

How to measure

  1. Measure from the chest area to just beyond the nose for the nose-distance limit.
  2. Measure around the widest part of the chest.
  3. Match both numbers to one row before ordering.
Size Nose distance Chest girth
XXS Up to 9.8 in / 25 cm 11.8-21.6 in / 30-55 cm
XS Up to 13.8 in / 35 cm 14.9-24.4 in / 38-62 cm
S Up to 15.7 in / 40 cm 16.5-31.5 in / 42-80 cm
M Up to 19.7 in / 50 cm 16.5-31.5 in / 42-80 cm
L Up to 21.7 in / 55 cm 19.7-37.4 in / 50-95 cm

Fit note: If one measurement falls outside a row, do not choose by the other measurement alone. Recheck the fit or ask for help before use.