Best growing harness for rescue puppy

Harness fit is everything — a poorly fitted harness restricts movement, causes chafing, or simply doesn't do what it's supposed to. With a 7-month rescue mutt you've got a specific challenge: they're still growing, probably still filling out, and if their adult size is unclear you need something with real adjustability rather than a harness that fits perfectly now and gets binned in three months. The right harness type — back-clip, front-clip, or dual-clip — also depends on what you're using it for. So: what does your dog roughly weigh right now, do you have any guess at their adult size based on their build or paws, and is this mainly for general walks or are they pulling hard?

That's a sensible way to think about it. If she's going from 10kg now to potentially 20–25kg, you're looking at a big range to cover, so what you want is a harness with multiple adjustment points — chest, belly, and ideally the shoulder straps — not just a single belly strap that slides. Front-clip would help with the pulling, but if it's mild I'd say a dual-clip is more useful: front ring for when you want more control, back ring for casual walks. Has she had any chafing or rubbing from anything she's worn before, or any reaction around the chest and armpits?

Under £20 is very doable here. The one I'd point you to is the Rabbitgoo No-Pull Dog Harness. It's a dual-clip harness — front and back D-rings — with four adjustment points, so you can genuinely size it up as she grows rather than just loosening one strap. It covers a solid weight range, the chest panel is wide enough to distribute pressure properly rather than digging into the armpits, and the reflective strips are a nice bonus for low-light walks. It regularly comes in around £15–18 on Amazon UK depending on the size you pick. For a dog whose adult size is uncertain and a budget that's realistic, it's the most practical choice — you're not overspending on a harness she'll outgrow, but you're also not getting something so flimsy it causes problems.

At 10kg with big paws and growth ahead, I'd go for the Large rather than the Medium. The Medium would fit her now but you'd likely be at its limit within a couple of months. The Large has enough range to accommodate her through most of her growth — just snug it down properly on all four adjustment points so it's secure now, and you'll have room to let it out as she fills out. The key fit check: you should be able to slide two fingers under any strap, but no more than that. If the front chest strap is gaping or the shoulder straps are sitting on her neck rather than behind the shoulder blades, it needs adjusting.

Good choice. One last thing worth knowing: rescue dogs sometimes take a few sessions to get comfortable wearing a harness if they haven't worn one before — let her sniff it, put it on for short periods indoors first before heading out. And when she does hit her adult size and the fit starts getting tight, check the Rabbitgoo XL before assuming you need a whole new harness — it's the same design, so she'd already be used to it. Good luck with her.