Long Rein size

Reins are measured from bit-end to bit-end. The length you need depends on the size of the horse, the length of the neck and personal preference. For long reins we recommend about twice the length of your horse + 1-2 meter (3-6.5ft) extra depending on your preferred position next to or behind the horse 

Size

Measurement 
in meters

Measurement
in inches

Recommended  for:
LXS
4m
13ft
pony size 
LS
5m
16ft5"
large pony or small cob 
LM
6m
19ft8"
small horse or cob 
LL
7m
23ft
full size
LXL
8m
26ft3"
large horses,