When available, we will provide a manufacturer's size chart for your reference. For collars, if there is no size chart then it is reasonable to assume that the size of the item will refer to the length measurement (except for a dog harness, in which case the chest measurement would be the size).
To determine the proper size for your dog, measure your dog's neck, chest and back with a tape-measure (see chart below).
1. Neck girth is taken by measuring the circumference of the neck (where the collar sits). Measure closely around the neck and please be as accurate as possible.
2. Back length is measured from the base of your pet's neck (where the collar sits) to the base of the tail. When measuring the back length it is very important that the pet is standing in normal position.
3. Chest girth is taken from the widest part of the pet's chest, usually behind the front legs. Measure closely all the way around the chest.
Note: If measurements fall between two sizes, please select the larger size.
How to Measure for Dress Shirts: Men's Guide | Nordstrom
On this website are several sizing charts. These charts show Chest, Center Back Neck-to-Cuff, Back Waist Length, Cross Back, Sleeve Length, Upper Arm, Armhole Depth, Waist and Hip. THESE ARE ACTUAL BODY MEASUREMENTS FOR BABIES, CHILDREN, WOMEN, and MEN in both inches and centimeters.
How to measure neck size and sleeve length for men's dress shirts
baby size chart Newborn Measurements: Head: 14in (35.6 cm); Chest circumference: 14 in (35.6 cm); Back of neck to hip length: 8in (20.3 cm); Waist to ankle length: 12in (30.5 cm); Crotch to ankle length: 6in (15.2 cm); Sleeve length: 8 in (20.3 cm)
Dress shirts are sized according to several key body measurements