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High wearing comfort thanks to thick padding
Matching accessories available
Measure the chest circumference at the widest point behind the front legs.
A - Chest circumference
B - Chest bridge (length)
C - Width of leather strap
Size 1
A: 33-40 cm | B: 23 cm | C: 1.5 cm
Recommended dog weight: 2-3.5 kg
Suitable for*: Chihuahua, Russkiy Toy, Prague Rattler, Yorkshire Terrier, Toy Poodle, Papillon, Miniature Spitz (very small), Miniature Pinscher (slim), Maltese (very small), small mixed breeds
Size 2
A: 35-44 cm | B: 27 cm | C: 1.5 cm
Recommended dog weight: 3-5 kg
Suitable for*: Maltese, Havanese (small type), Bichon Frisé (small), Shih Tzu (slim), Miniature Dachshund, Cavalier King Charles Spaniel (small type / slim)
Size 3
A: 39-52 cm | B: 30 cm | C: 1.5 cm
Recommended dog weight: 5-8 kg
Suitable for*: Jack Russell Terrier, Parson Russell Terrier, Miniature Schnauzer, West Highland White Terrier, Shih Tzu (strong), Havanese (strong), Cavapoo (small type), Cockapoo (small type)
Size 4
A: 45-60 cm | B: 36 cm | C: 1.5 cm
Recommended dog weight: 7-12 kg
Suitable for*: Jack Russell Terrier (strong), Pug (slim), French Bulldog (very slim), Beagle (small type/slim), Boston Terrier, medium-sized mixed breeds (slim)
Size 5
A: 52-70 cm | B: 40 cm | C: 1.5 cm
Recommended dog weight: 11-15 kg
Suitable for*: Beagle (normal), Pug (stocky), French Bulldog (normal), Boston Terrier (stocky), Cocker Spaniel (very slim)
*Important note: There may be differences in physique within the same breed. The breed recommendation is for guidance only and is not a guarantee. To determine the right size, we always recommend measuring the chest circumference.

Do you already know all the advantages?
Why you and your four-legged friend will love the Pico harness
We analyzed over 100,000 product reviews, surveyed over 20,000 customers, and conducted 50 long-term tests. In doing so, we identified and, of course, solved the following problems:
Perfectly matched for
5 coordinated sizes with specially adapted, lightweight fittings. Designed for small dogs and for an optimal fit and maximum comfort, even for dogs with unusual body shapes such as dachshunds or French bulldogs.


Painful chafing, sharp edges, and no padding? Not with William Walker harnesses.

Fine nappa leather
Full-grain nappa leather with elaborately folded edges. This prevents sharp and rough edges, which can not only be very uncomfortable for your four-legged friend but can also cause inflammation and skin irritation.
Tear-resistant nylon insert
To increase tensile strength and prevent the stretching that is common with most other harnesses, a hidden nylon insert is incorporated into the inside. This ensures that your harness retains its size even after prolonged use.
Super soft padding
For maximum comfort, the inside of the chest pad is thickly padded. This makes the harness pleasantly soft for your four-legged friend, even when pulling.
Don't trust us, trust in:
Over 50,000 satisfied customers

Bekannt aus
High-quality cowhide leather
solid brass
Small dogs and puppies
High wearing comfort thanks to soft leather, padding, and optimal pressure distribution on the sternum.
Lovingly crafted by hand
Leash, collar, poop bag dispenser, and treat bag
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