BullyVest vs. SpikeVest for Cats: Picking the Right Fit

The short answer: one is built for cats, the other for dogs

If you are shopping for a cat, the SpikeVest for Cats is the only one of these two vests designed specifically for cats. The BullyVest is a dog vest; its sizing and structure are built around a dog's back and chest. That single difference drives nearly every other trade-off in this comparison.

That does not automatically make the BullyVest wrong for every household, but it does mean you should treat it as a dog product first. The rest of this guide explains where each vest fits, what coverage you get, and how to measure so you order once.

Species fit and coverage at a glance

• Designed for: SpikeVest for Cats: cats. BullyVest: dogs.
• Neck protection: SpikeVest for Cats covers the back and neck with spikes and has a large collar to protect the back of the neck. BullyVest has no collar; you add neck protection with a spiked collar or the matching BullyHarness.
• Fastening: SpikeVest for Cats uses two wide Velcro belts. BullyVest uses snap buckles like the CoyoteVest.
• Spikes: SpikeVest for Cats includes removable chrome spikes for the neck and two spike strips for the sides of the back. BullyVest includes two removable chrome spike strips for the sides of the back.
• Leash attachment: SpikeVest for Cats has a D-ring at the top of the vest for use with a leash. BullyVest works with your existing collar or harness; you can wear a harness over or under the vest, and there is a secure access flap for connecting your leash to an under-vest harness.

Why the SpikeVest for Cats is the default choice for cats

The SpikeVest for Cats is cut for a cat's body and uses Velcro so you can remove the spikes when necessary to avoid any chance of accidental injury to other animals or people. The vest is water-proof, has no metal parts that can rust, and is hand-washable with mild detergent; air dry it in shade and do not put it in the dryer.

The manufacturer is explicit that your cat should not be left unattended while wearing the SpikeVest. That is a handling rule, not a reason to avoid the product, but it belongs in your decision if your cat spends long stretches outside alone.

SpikeVest for Cats: sizing evidence

• SpikeVest for Cats: Back length 10"–12" recommends Extra Small; 12"–15" recommends Small; 15"–18" recommends Medium. Back length, not weight or neck girth, is the sizing measurement the manufacturer treats as most important for cats.

  

• SpikeVest for Cats: Measure the length of the back from the shoulder to the start of the tail while the cat is standing, not sitting. A sitting cat compresses the back and can push you into the wrong size, which leads to an exchange.
• SpikeVest for Cats: If you are still uncertain after measuring, it is usually better to go with the smaller size. The manufacturer reports more returns and exchanges from vests being too large than too small.
• SpikeVest for Cats: The collar and waist are very adjustable, but a vest longer or shorter than your cat's back length will not fit properly and will need an exchange. Adjustability fixes girth, not length, so the back measurement is the one you cannot fudge.

Where the BullyVest fits—and where it does not

The BullyVest is a torso-protection vest for dogs. It is entirely constructed with puncture-resistant Cordura® fabric, uses snap buckles, and has chest and throat flaps. It has reflective features for night visibility and is water repellent with no metal parts that can rust. It is hand-washable with mild detergent and must not go in the dryer.

For a cat, the central problem is not the fabric but the shape and sizing scale. The BullyVest size chart is built around dog back lengths and dog weights, and the manufacturer notes that weight varies significantly across breeds. Nothing in the supplied information presents the BullyVest as a cat vest, so choosing it for a cat means accepting a dog-designed fit rather than a cat-specific one.

BullyVest: sizing and compatibility evidence

• BullyVest: Measure a straight shot from the front shoulder to the start of the tail without curving the tape; the vests have a straight back and no curve. Following the dog's back curvature adds length and throws off the size, so a straight measurement is the only reliable one.

  

• BullyVest: If you are using the BullyVest with the BullyHarness, both sizes must be the same. Mixing sizes breaks the intended pairing and complicates the neck-protection setup.
• BullyVest: The BullyVest is compatible with CoyoteWhiskers and HawkShield accessories. If you already use those accessories on a dog, the BullyVest keeps that system working.

How to decide between them

Use these decision rules to match the vest to the animal in front of you, not to the product you like the look of.

• You are outfitting a cat: Start with the SpikeVest for Cats and measure back length standing. It is the only cat-specific option here and includes neck coverage without extra parts.
• You want neck protection without adding a collar: The SpikeVest for Cats has a large collar built in. The BullyVest has no collar; you add a spiked collar or the matching BullyHarness.
• You are outfitting a dog and already use CoyoteWhiskers or HawkShield: The BullyVest is the compatible choice, and its snap buckles match the CoyoteVest fastening style.
• Your cat is rounder than normal: The manufacturer recommends Extenders for the waist and possibly the neck on the SpikeVest for Cats rather than sizing up the whole vest.
• You are still unsure after measuring: The manufacturer advises going with the smaller size for both vests and notes that too-large vests drive more returns than too-small ones.

Care and handling rules that differ

Both vests are hand-washable with mild detergent and must be air-dried in shade; neither should go in the dryer. The SpikeVest for Cats is water-proof, while the BullyVest is water repellent. The SpikeVest for Cats has no metal parts that can rust, and its color topper may fade over time in sun without affecting quality or effectiveness. The manufacturer also notes that fluorescent orange fabric fades quicker due to its yellow and orange hues.

The most important handling difference is supervision. The SpikeVest for Cats should not be left on an unattended cat. The BullyVest instructions supplied here do not include an equivalent supervision statement, so do not assume the same rule applies in either direction; follow the guidance that comes with the specific vest you buy.