Ruffwear Front Range Harness Size Chart

To find the best size Front Range Dog Harness for your dog

Measure around your dog's girth/chest at the widest point behind their front legs.
Measure snugly but not tight - a properly fitting harness should be snug but still allow you to fit a finger between the strap and your dog's body.

Is your dog's chest 'exactly' on the border between sizes and a stable weight/fully grown? If so, Ruffwear recommends choosing the larger size.