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The neck measurement should be taken around the lower part of your dog’s neck, simply measure the widest part at the base of the neck as this is where the collar is going to sit. This size chart is based on min-max measurements.
This 4cm width collar is suitable for medium-large breeds such as Frenchies, Staffies, Spaniels, German Shepherds, Huskies and upwards. If your dog is smaller or larger than these breeds, please see our 2.5cm and our 5cm collar versions.
Size
Neck Girth
XSmall
38cm-45cm
Small
40cm-50cm
Medium
43cm-58cm
Large
48cm-66cm
XLarge
Please see our 5cm Collars
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Product description
All the strength of the Combat® Collar, with a lighter feel.
The 4cm Lighter Combat® Collar is engineered for dogs who need strength, stability, and dependable handling without the unnecessary weight. Now available in new colour options, this upgraded version delivers the same professional‑grade performance as our original Combat® design, but in a lighter, more agile build. Each collar is approximately 100g lighter per size than our standard 4cm Combat® Collars, giving you powerful control with noticeably less bulk.
Engineered for Performance
Triple‑stitched nylon webbing for long‑lasting strength
6mm Aluminium Alloy D Loop rated for high pull force
Combat® quick‑release clip with dual‑lever safety lock
Double‑stitched handle for emergency control and close‑contact handling
Ideal For: Medium to large breeds, strong pullers, working dogs
Use Case: Daily walks, training, control work, high‑intensity environments
Comfort That Lasts The internal layer is lined with odourless, quick‑drying neoprene to prevent rubbing and irritation. Whether your dog has short fur or sensitive skin, this collar stays comfortable all day.
Adjustable Fit for All Breeds Easily adjust the collar by threading the nylon through the metal adjuster. Perfect for growing dogs, seasonal coat changes, or breed‑specific sizing.
Trusted by Professionals Used by police, military, security handlers, and everyday dog owners who demand reliability. Built for daily use, training, and high‑intensity environments.
Product weight
Size
Weight
XSMALL
150
g
SMALL
155
g
MEDIUM
160
g
LARGE
170
g
Hear it directly from our ambassadors
@gsdbear
Once you’ve tried BullyBillows, you’ll never go anywhere else. The quality and range of their products is unmatched, and the team are just fantastic. We’ve been with them since 2020 and we’ve never looked back!
@meko_xlbully
BullyBillows combines strength, comfort, and style perfectly for dogs like Meko. We absolutely adore BullyBillows.
@thepuggysmalls
We have so many goodies from BullyBillows, from harnesses, leads, dog chews and beds, they tick all the boxes to keep my precious pugs happy, cosy, safe and oh so stylish!
@swedishbulldogfamily
Finding products that our bulldogs genuinely feel comfortable wearing changed everything for us, and that’s exactly what BullyBillows gave us.
Customer Reviews
Overall rating: 4.9 / 5 from 17 reviews.
Unique design, perfect thickness!
People even compliment it when we pass by on the street.
It’s a great quality collar. We’ve not had it long but the colours are lovely, it fits great and the metal hardware is solid. It looks great and our dog looks lovely wearing it. Highly recommended
I only buy bully billow harnesses, collars and leashes because they are well made, reasonably priced and very stylish. I also have bull breeds and I need a more sturdy product. They are the best product for any larger dog.
Really lovely colours and the handle is a useful feature. Our staffy now has 4 different coloured collars from this range, but this one’s my favourite 😊
The collars look beautiful as always the great quality and attention to detail! Only problem I have is storing the half the website my dogs own in the home!!
Love it, amazing design, quality products at decent prices, I purchased a selection of products from the range, very happy with all of it, will definitely come back if I need anything else, 10/10
The collar was beautiful and very well made.
However i felt it was just too bulky for my female dobbie, the buckle part in particular. I would have preferred the pink camo in the 2.5cm which wasnt available. Will definately try again for something suitable for her.
The best dog collar really depends on the breed, size and activity level of your dog. Slip-on collars are great to assist training your dog that pulls, whereas a Combat collar is perfect for everyday use and comes in various thicknesses, from 2.5cm for smaller breeds to 5cm for XL breeds. Our pin buckle collars are also a great choice among medium to XL dog owners, and the Billowthane collar range is 100% waterproof, ideal for pooches who love water! Read more in our Collar Buying Guide to find the right collar for your dog.
How tight should a dog collar be?
Similar to harnesses, a dog collar should be snug but not too tight. We’d recommend being able to fit two fingers between the collar and your dog’s neck - if you can fit more than two fingers, the collar may be too loose and could slip off. If you can’t fit two fingers, it might be too tight for your dog causing discomfort and potentially breathing difficulties.
Do dogs have to wear collars?
It’s a legal requirement for dogs to wear collars with ID tags when in public. The tag needs to display your name and address to help reunite you and your dog if they ever get lost. We know that a lot of owners prefer using harnesses, but a collar and ID tag are essential to comply with UK law when you’re out in public, so make sure you’ve got both on if needs be.
How do you measure a dog collar?
To measure a dog collar, wrap a flexible measuring tape around the base (the lower sections) of your dog’s neck whilst leaving enough room to fit two fingers in between. A lot of collars are adjustable, which is ideal for a puppy as you can simply extend the collar as they grow into it.