A well-fitted Field Guard is easily accepted by most dogs because it is engineered for comfort. The correct size allows room for the dog to open his mouth and pant, and for air circulation around the face that is necessary for cooling. If you want the best fit for your dog, use these measuring instructions for exact sizing.
Before March 2022, dogs with furry faces, extra long ears, or a blocky heads required an “O” size to allow space for necessary air circulation and cooling. All other dogs were able to utilize our regular size. With the announcement of our new sizes, we have eliminated the 'O' size.
The chart below is the New Size Guide Chart for all sizes in stock. Note that PUPPY size is and has always been based on current head length.
Measure your dog for correct sizing. Breed examples are just a rough guideline. If your dog's measurements are on the borderline between sizes: for XXS & XS, XS & S choose the smaller size; for S & M, M&L, L & XL choose the larger size.
| Size | Head Length | Breed Examples |
|---|---|---|
| XXS | 5½-7 in (14-18 cm) | Chihuahua, Miniature Dachshund, Cavalier (sm), Poodles & Doodles (toy/miniature), Pug (sm), (not for dogs <9 lbs) |
| XS | 7-8¼ in (18-21 cm) | Cairn Terrier, Jack Russel, Norwich Terrier, Cavalier, Pug, French Bulldog |
| S | 8¼-9½ in (21-24 cm) | Beagle, Brittany Spaniel, Jack Russell, Sheltie, Boxer, Pit Bull, Doodle |
| M | 9½-11½ in (24-29 cm) | Australian Shepherd, Border Collie, Vizsla, Labrador, Greyhound, Basset Hound, Bernese (sm), Doodle (std), Rottweiler, English Lab, English Bulldog, Wheaton Terrier, Scottish Terrier |
| L | 11½-13½ in (29-34 cm) | Doberman, German Shepherd, Weimaraner, Bloodhound, Pyrenees, Mastiff |
| XL | 13½-15½ in (34-39 cm) | Great Dane, Irish Wolfhound, Bloodhound, Great Pyrenees, Mastiff, Saint Bernard |
Need Help Choosing a Size? For additional assistance, email us at hello@outfoxfordogs.com. Please include head length, weight, and a photo of your dog.
Adjusting for Fit The correct fit is as important as size for your dog's comfort and acceptance of the Field Guard. Download the OutFox Comfort Guide for how to create the best fit for your dog.
Comfort and protection for every adventure — from hot pavement to icy trails.
Whether it's a summer hike, a walk through grass-seed season, or a slippery kitchen floor, OutFox OutSocks give your dog's paws the traction and protection they need to keep moving confidently. Our new two-strap design keeps socks secure through walks, hikes, and play — no more twisting, sliding, or falling off mid-stride.
🐾 Dual-Strap Secure Fit Two adjustable straps work together to keep every sock exactly where it belongs:
Compare that to single-strap competitors, which can twist, slide down, and come loose. OutFox's dual-strap system stays put — more secure, better stability, less slipping.
🐾 Non-Slip Rubberized Soles Textured rubber grip provides real traction on both wet and dry surfaces, helping prevent slips and falls on hardwood, tile, ice, or trail.
🐾 Breathable & Flexible Soft, stretchy knit fabric flexes naturally with your dog's paw while keeping it cool, dry, and comfortable — breathable, lightweight, and gentle on sensitive paws.
🐾 Protection for Every Adventure
Each pack includes 4 non-skid OutSocks — a full set for all four paws.
Measure your dog's paw width (internal dimension) and use the chart below:
| Size | Width x Height (inches) |
|---|---|
| S | 1.6 x 5.5" |
| M | 2.0 x 6.7" |
| L | 2.25 x 7.5" |
| XL | 2.5 x 8.0" |
| XXL | 3.0 x 9.0" |
The width listed is the internal dimension. Knit products reflect the labeled size but may have slight discrepancies from actual measurements — individual fit may vary, so use this as a suggested guide.
87% Cotton, 9% Polyester, 3% Nylon, 1% Polyurethane Hand wash only. Do not bleach. Do not dry clean. Do not iron.
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