Reviewed by Wendell Van Jour, Founder, Rogue Royalty. Hand-building leather dog gear since 2009. Supplier to protection K9 units, working handlers, and over 30,000 dog owners worldwide. Last reviewed May 2026.
A puppy's first collar is more important than most owners realize. It's where they learn that pressure on the neck means something. It's the piece of gear that builds the muscle memory for every walk that follows. After sixteen years building canine equipment, I can tell you the puppy collar choices owners make in the first six months shape how their adult dog behaves on a leash years later. This guide covers how to choose a puppy collar that fits properly, when to introduce it, what materials work for a teething mouth, how tight is too tight, and when to size up as your puppy grows into their adult collar.
When can a puppy first wear a collar
The American Kennel Club suggests most puppies can begin wearing a collar around eight weeks of age, once they've settled into their new home. Start with short sessions of fifteen to thirty minutes so the puppy learns the sensation without feeling overwhelmed.
Some puppies paw at the collar, roll, or try to scratch it off. That's normal. Distract with play, treats, or training. Within a few days, most puppies stop noticing the collar entirely.
The exception is brachycephalic breeds (French Bulldogs, Pugs, Boston Terriers, English Bulldogs). For these dogs, a collar works fine for ID purposes, but a properly fitted harness is the right call for walking from day one. Pressure on a flat-faced dog's neck can compromise breathing.
What size collar fits a puppy
Puppies grow fast. Most medium and large breed puppies outgrow three to four collar sizes in their first year. Don't buy oversized: a collar with too much slack can catch on furniture, crate bars, or the puppy's own paw.
Measure the puppy's neck with a soft tape where the collar will sit, around the widest point near the shoulders. Add about an inch and a half for comfort and growing room. Check the fit weekly. A puppy that was loose in a collar on Monday can be snug by Friday.
The two-finger rule applies. You should be able to slide two fingers between the collar and the puppy's neck. Any tighter restricts breathing. Any looser and the puppy can back out of it during a startle reaction. For complete sizing across collars, harnesses, and leashes, see our sizing guide.
Choosing the right material for a puppy collar
Three materials dominate puppy collars on the US market.
Leather is the long-term choice. It softens with use, doesn't fray, and develops a patina. The downside for puppies: teething puppies chew aggressively, and a chewed leather collar isn't salvageable. Most puppies pass through the chew phase by five to six months, so leather works as the second or third collar rather than the first.
Nylon is the budget standard. Light, washable, holds bright colors, takes embroidered ID. It frays at the buckle over time and can hold odors if it gets wet repeatedly. Solid for a first collar the puppy will outgrow anyway.
Biothane is a coated webbing that's becoming popular in the US. Waterproof, easy to clean, looks like leather but performs like rubber. Useful for puppies in wet climates or those swimming early.
The standard progression for a puppy that will eventually move into a full leather setup: soft nylon or biothane for the first few months, then a properly fitted handmade leather collar once chewing slows.
Collar vs harness for a puppy
Both, for different jobs.
A collar carries the ID tag and is what the puppy wears day to day. Most US states legally require dogs in public to wear a visible ID tag. The collar isn't primarily for walking pressure during the puppy stage.
A harness is what you clip the leash to for walks. A puppy harness distributes leash pressure across the chest and shoulders rather than the neck, which protects the trachea on a still-developing puppy. Our puppy harness range covers this exact use case. For the deeper read on why most puppy harnesses fail, see our piece on why most puppy harnesses fail and what to use instead.
How to fit a puppy collar safely
Three checks every time.
Slide two fingers between the collar and the puppy's neck. Tighter restricts breathing. Looser lets the puppy slip free during a startle.
Check the fit weekly. Puppies grow at a rate that surprises new owners. A perfect fit Monday can be a strain by Friday.
Inspect the buckle and hardware after every chew session. Teething puppies mouth their collars. If the buckle looks bent or the hardware loosens, replace before it fails.
When to upgrade as your puppy grows
Four signs it's time to size up:
The collar sits tight with no two-finger gap. The buckle is at the last hole with no room to extend. The puppy scratches at the collar more than usual. You can see the collar leaving an indent in the fur after a few hours of wear.
Most medium and large breed puppies need three to four collar sizes in year one. Small breeds usually need two or three. By twelve to fifteen months, most dogs reach adult size and can move into a permanent collar that lasts a decade with proper care.
When you do upgrade, our leather collar range is the long-term setup most of our customers transition into. Pair it with a matching leash from our leather leash range for a complete adult setup.
Puppy collars at Rogue Royalty
We've been hand-cutting full-grain, vegetable-tanned leather in our Australian workshop since 2009. Our puppy collection covers the first-collar life stage with soft, lightweight options sized for growing necks, then transitions into our handmade leather collar range once the puppy is past the chew phase.
Every collar ships with our craftsmanship guarantee. Workshop detail on how we build our gear if you want the deeper look.
The bottom line
A puppy collar is a tool with one job for the first few months: hold the ID tag without restricting the puppy or getting in their way. Get the size right, check the fit weekly, choose a soft material that survives the chew phase, and plan to upgrade as the puppy grows.
For walking pressure during the puppy stage, use a properly fitted puppy harness. When the chew phase ends, move into our leather collar range for an adult collar that lasts.
Loyalty deserves royalty. Build the foundation right.
Frequently asked questions
When can a puppy start wearing a collar?
Most puppies can begin wearing a collar around eight weeks of age. Start with short sessions of fifteen to thirty minutes so they adjust to the sensation.
How tight should a puppy collar be?
Use the two-finger rule. You should slide two fingers between the collar and the puppy's neck. Any tighter restricts breathing.
What's the best material for a puppy collar?
Soft nylon or biothane for the first few months while teething. Move to leather once chewing slows, usually around five to six months.
Should I get a collar or harness for my puppy?
Both. The collar holds the ID tag. The harness handles walking pressure and protects the puppy's developing neck and trachea.
How often should I check my puppy's collar fit?
Weekly. Puppies grow quickly, especially medium and large breeds, and a collar that fit last week can be tight this week.
Can a puppy sleep in a collar?
Most trainers recommend removing the collar at night or during unsupervised crate time. Collars can catch on bedding or crate bars.
How many collars will my puppy go through in the first year?
Most medium to large breed puppies grow through three to four sizes in the first year. Small breeds typically need two or three.
When should I put an ID tag on my puppy?
As soon as you bring them home. Even an indoor escape can happen in the first few days, and a visible tag is the fastest way to recover a lost puppy.
