Luxury Leather Harness
Why Dog Owners Choose Castellar
Handcrafted Italian leather, unique decorative details, and a custom fit made for your dog. See Castellar quality up close.
Built by hand.
Made for years.
Every Castellar harness is cut, stitched and finished by experienced leather craftsmen. We reinforce the points that take the most load, then inspect the final piece by hand.
Control without fighting your dog’s body.
The Y-shaped construction sits around the chest instead of loading the neck. Multiple adjustment points help the harness stay stable while leaving the shoulders free to move naturally.
Leather that looks better the more you use it.
Selected for strength, flexibility and a timeless finish. The harness is substantial in the hand, soft where it touches your dog, and built to age with character.
Five details you notice every day.
Not features for the sake of a spec sheet. These are the things that make the harness easier to live with on normal walks, training days and long weekends outside.
A secure fit starts with four measurements.
Measure your dog while standing naturally and keep the tape comfortably snug, not tight. Use A, B, C and D below, then match the measurements to the closest size.
| Size | A · Neck | B · Chest | C · Chest length | D · Girth belt |
|---|---|---|---|---|
| L | 43–60 | 65–87 | 22–27 | 17–20 |
| XL | 50–70 | 84–116 | 33–41 | 21–24 |
| XXL | 68–83 | 105–147 | 46–54 | 25–28 |
What customers say after the first walks.
Charlotte loved how the leather sits on her dog and described the harness and matching leash as a premium set that was well worth the investment.
Grace highlighted the thick, buttery-soft leather, precise stitching and a fit that worked perfectly for her dog right away.
Sarah praised the leather quality, craftsmanship and personal customer service, calling the harness one of the finest dog pieces she has owned.
Benjamin said the harness draws compliments for both its appearance and build quality and strongly recommends Castellar.
William appreciated the adjustability for his young Rottweiler, along with the leather quality and craftsmanship, with room to grow.

Frequently asked questions
How do I choose the right harness size?
Measure your dog according to the size guide in the product gallery. The harness is available in L, XL and XXL. If your dog sits between sizes, send us the measurements and we can help you choose the better fit.
Where should the harness sit on my dog?
The Y-shaped front should sit on the chest while leaving the shoulders free. Adjust the straps so the harness is secure without digging into the body or restricting natural movement.
What is the harness made from?
It is made from genuine vegetable-tanned leather with soft padded contact areas. You can choose solid brass or stainless steel hardware depending on the look you prefer.
Can I use it for strong or pulling dogs?
The harness is designed for better control on walks and training, with reinforced construction and multiple adjustment points. Correct sizing and adjustment are essential for a secure fit.
How do I care for the leather?
Wipe the harness with a dry or slightly damp cloth after use. From time to time, condition the leather with a suitable leather-care product to help keep it soft and protected.
Is every harness made to order?
Yes. Castellar pieces are handcrafted to order, so your gear is prepared individually rather than mass-produced. Shipping details are sent once the order is dispatched.
Build a matching Castellar set.
Pair the harness with a matching leather leash or collar. Product prices below load directly from Shopify so they stay current.


