OutFox® Field Guard styles are based on head shape:
The correct type of style allows for enough air space between the dog’s head and Field Guard for the best air circulation and cooling.
Regular head shapes – for the average head shape (ie hounds or shepherds)
Short/Wide – wide or furry heads (Pit bulls or Labradoodles with long hair), or long ears (Bassett)
Flat-Snouts (Pug, English Bulldog) see the FLAT-SNOUT DOG SIZING chart below.
1. CHOOSE YOUR DOG’S HEAD SHAPE TO DETERMINE FIELD GUARD TYPE:
2. MEASURE HEAD LENGTH
(NON Flat-Snout dogs)
Head length measurement is taken from the base of the skull (where it meets the neck), straight (do not follow contour of face), to the end of the snout.
3. CHOOSE A SIZE – (If your dog measures on the borderline between sizes, choose the smaller size.)
FIELD GUARD SIZE CHART
Please always measure your dog for exact sizing.
It is important to us to get the correct size to insure your dog’s comfort, and therefore, acceptance. If you have any questions or concerns about choosing the right size, feel free to email [email protected] before you place your order.
Flat-Snouts (Pug, English Bulldog) see the FLAT-SNOUT DOG SIZING chart below.
(Short/Wide sizing is named simply “Short” in the size chart)
| Dog Type | Field Guard Size | Head Length | Breed Examples |
|---|---|---|---|
 |
CUSTOM ORDER TINY | Less than 5″ or 9 lbs | Tiny Chihuahua, Maltese, Yorkshire Terrier |
|
XXS | 5-6.5″ | Chihuahua, Miniature Dachshund |
 |
XS-SHORT | 5-6.5″ | Long haired Miniature Poodle |
 |
XS | 6.5-8.25″ | Cairn Terrier, Jack Russell, Norwich Terrier, Whippet |
 |
S-SHORT | 6.5-8.25″ | Cavalier King Charles Spaniel |
 |
S | 8.25-9.5″ | Beagle, Border Collie, Brittany Spaniel, Jack Russell, Sheltie, |
 |
M-SHORT | 8.25-9.5″ | Boxer, Pit Bull |
 |
M | 9.5-11″ | Australian Shepherd, Vizsla, Labrador, Greyhound, Wheaton Terrier |
 |
L-SHORT | 9.5-11″ | Basset Hound, Labradoodle (with long hair), Small Rottweiler |
 |
L | 11-13.5″ | Doberman, German Shepherd, Weimaraner |
 |
CUSTOM ORDER BIG | OVER 13.5″ | Bloodhound, Guardian Dogs, Bernese, Great Dane, St. Bernard, Wolfhound |
FLAT-SNOUT DOG SIZING
Breeds such as Pug, Boston Terrier, English Bulldog, French Bulldog, Chow
Only flat snout breed sizing is based on
Head Circumference
see video for how to measure 
It is important to us to get the correct size to insure your dog’s comfort, and therefore, acceptance.
Please always measure your dog for exact sizing.
If you have any questions or concerns about choosing the right size, feel free to email [email protected] before you place your order.
MEASURE HEAD CIRCUMFERENCE
(Flat-Snout dogs ONLY)
Circumference: Measure loosely around the largest part of the head, going gently over the ears. If the ears stand up, don’t measure up and over ears.
FLAT-SNOUT SIZE CHART
| Dog Type | Field Guard Size | Head Circumference | Breed Examples |
|---|---|---|---|
|
XS-SHORT | 15-17″ | Boston Terrier, Pug, Shih Tzu, King Charles Spaniel |
|
S-SHORT | 17-19″ | Cavalier King Charles Spaniel, French Bulldog |
|
M-SHORT | 19-22″ | Boxer, Small English Bulldog |
|
L-SHORT | 22-25″ | English Bulldog |
 |
CUSTOM ORDER BIG | OVER 25″ | Chow, Mastiff |