Best adjustable collar for growing Labradoodle

Collar fit and safety matter more than most people realise — too loose and a dog can back out of it, too tight causes real discomfort or even injury, and some dogs genuinely need specific collar types based on their build and behaviour. A 9-month-old Labradoodle is a great example of where this gets tricky: they're still filling out, so what fits perfectly one month can be too snug the next. What's your dog's approximate neck size right now, is this purely for ID and everyday wear, and are there any concerns — pulling, skin sensitivity, anything like that?

That growth rate is totally normal for a Labradoodle at this age — she could put on another few centimetres before she settles, probably around 12 to 14 months. For a dog in that situation, I'd point you straight to the Blueberry Pet Classic Solid Colour Dog Collar. It's a nylon flat collar that comes in a medium size adjusting from roughly 33cm to 43cm, which gives you a solid 10cm of range — more than enough to carry her through the rest of her growth. It's well-made for the price, the buckle is secure without being fiddly, and the D-ring sits flat so ID tags don't dangle awkwardly. Around £8–10 on Amazon UK, which is genuinely good value.

Two things to check regularly. First, the two-finger rule: slide two fingers flat under the collar — if you can't fit them, it's too tight; if your whole hand slides through easily, it's too loose. Do this every couple of weeks while she's still growing. Second, look at the nylon itself: if it starts fraying, the buckle feels loose or doesn't click firmly, or the D-ring has developed any rough edges, it's time to replace it regardless of fit. A collar in good condition that fits correctly is the only reason to keep it.

For everyday walking with a dog who isn't pulling hard, a flat collar is fine and keeps things simple. Where a harness earns its place is if she starts lunging or pulling — repeated pressure on a collar can strain the neck and trachea, especially in younger dogs whose musculature is still developing. If she's calm on lead, stick with the collar for now and keep a harness in mind as a next step if pulling becomes a habit. You don't need both immediately.