Pets Size Chart

Shop with confidence, measure with care, and enjoy timeless wear.

Find Their Size

These sizes and body measurements are intended as a guide to assist with sizing – these are not exact garment measurements. Locate the measurements below, and the chart will tell you the approximate Charles River size that will fit best.

Pet Size Chart

Please allow ½ inch +/- tolerance.

How to Measure

  1. NECK: Measure around the base of your dog’s neck where the collar would sit. Leave enough room to fit two fingers beneath so it’s not too tight.
  2. CHEST: Measure the widest part of your dog’s chest, just behind the front legs, all the way around.
  3. LENGTH: Measure from the base of your dog’s neck (where it meets the shoulders) to the base of the tail.