Description
Hat should not exceed 5% of body weight. See below for guidance:
BODY WEIGHT COLLAR WEIGHT
< 10 kg (1.5 st) <0.5 kg (2.2 lb)
< 20 kg (3.1 st) <1 kg (4.4 lb)
< 30 kg (4.7 st) <1.5 kg (6.6 lb)
< 40 kg (6.3 st) <2 kg (8.8 lb)
< 50 kg (7.9 st) <2.5 kg (11 lb)