Cooling vest for overweight Labrador

Heatstroke in dogs is a genuine risk in hot weather — and it's worth knowing that extra body mass makes that risk significantly higher, because a heavier dog generates more heat and can't shed it as efficiently. Brachycephalic breeds and thick-coated dogs are the classic high-risk cases, but your vet is right to flag this for an overweight Labrador too. Cooling vests work through evaporative cooling — you wet them, and as the water evaporates it draws heat away from the body. They work best in drier climates; high humidity slows evaporation and reduces the effect. So — what breed and rough size is your dog, what kind of climate or situation are you dealing with, and how active is he or she in the heat?

That's a really important flag from your vet, and it's good you're taking it seriously. A 95 lb Labrador who doesn't self-regulate is a genuine risk on a warm UK day — Labs are notorious for pushing through heat because they're so motivated. The extra weight means his body is working harder to stay cool even at rest, so exercise tips the balance quickly. A few things I want to understand: is he mostly doing on-lead walks, or does he get off-lead running? And are you thinking about something he wears just for walks, or do you also want something for time in the garden or car journeys?

For a dog in his situation — large, overweight, vet-flagged, enthusiastic — I'd go with the Ruffwear Swamp Cooler. It's the most genuinely effective cooling vest for large dogs and it's designed for exactly this kind of use: active wear during walks and passive cooling in the garden. It covers the core properly — chest, back, and sides — which matters for a heavy dog because that's where heat accumulates. You soak it, wring it out, and put it on; it stays cool for a couple of hours and you can re-wet it as needed. It comes in sizes up to XL and XXL, and at 95 lbs your Lab will likely be an XL — I'd measure his chest girth before ordering to confirm. It's not the cheapest option, but for a dog with a genuine medical risk factor it's the one I'd trust. Pair it with early morning or evening walks rather than midday, and always bring water — the vest buys you a margin, it doesn't eliminate the risk.

Yes on both counts. The Ruffwear Swamp Cooler is built from a durable three-layer fabric — an outer evaporative layer, an absorbent core, and an inner reflective layer — and it holds up well to regular use and muddy dogs. It's hand wash or gentle machine wash, which for a Lab who goes out daily is practical. One thing worth knowing: because it works through evaporation, rinse it clean after muddy walks before re-wetting for cooling, since mud in the fabric can reduce how well it breathes. It's also worth having two on rotation if you're using it daily in a warm spell — one drying while the other is in use.

Good plan — measure his chest at the widest point behind the front legs, that's the key measurement for Ruffwear sizing. Given he's 95 lbs and a broad Lab build, don't be surprised if he lands between sizes; if that happens, size up so it sits snugly without restricting movement. And keep your vet in the loop as he loses weight — his size category may shift, which is a good problem to have.