Say the worry — get the item that fits
Start with the problem, not the product
Pet gear goes wrong on fit: a harness they slip, a collar that pulls over the ears, a carrier the airline turns away. Tell us the worry — we turn it into the one measurement that matters and hand you the item that fits your pet, with the fit guaranteed.
All problems & starter kits → · or browse gear by type · how the guarantee works. Every guaranteed size is anchored to your measurement, never a breed guess.
Start from your breed
A typical starting point — then measure your own pet to lock it in. Every breed below has a measured crate/carrier/harness/collar starting size with the rule and source shown.
All 72 breeds & size classes
Toy dogs 5
Small dogs 17
Medium dogs 11
Large dogs 19
Giant dogs 12
Cats 8
New breeds & verified gear lists — get the email
We add breeds and measured crate / carrier / harness picks every week. One short email when your breed's verified gear list is ready — no newsletter, no spam.
How this works
1 · Predict
“How big will my puppy get?” Breed + age gives an adult-size range to plan around.
2 · Measure
Three numbers — chest girth, neck, body length — measured to the skin. This is the honest anchor.
3 · Size
Each measurement becomes a size by a stated rule, with a check against the product's own chart.
Breed ranges come from AKC standards; girth and length are typical estimates you confirm by measuring. We don't sell you a size — we compute the one your pet needs.