How to Choose and Size a Dog Collar, Leash and Bandana

Collars, leashes, bandanas and bow ties are some of the simplest things you can buy for a dog, yet fit problems are one of the most common reasons owners end up buying twice. A collar that is too loose can slip off on a walk; one that is too tight rubs and restricts breathing. This guide covers how to measure properly, how to choose materials and hardware, and how to pick decorative accessories that stay comfortable and safe.

Measure your dog the right way

• Use a soft tape measure around the middle of the neck, where a collar naturally sits. No tape? Wrap a piece of string, mark it and measure it against a ruler.
• Measure snug, then check fit with the two-finger rule: you should be able to slide two flat fingers under the collar, but it should not slip over your dog's ears when pulled forward.
• If your dog is between sizes on a brand's chart, choose the size where your measurement sits in the middle of the adjustment range, so there is room to loosen or tighten.
• Re-measure puppies every few weeks and long-coated dogs after grooming.

Collar width and material

Width should scale with the dog: narrow collars (around 5/8 inch) for small breeds, 3/4 inch for medium dogs and 1 inch or more for large, strong dogs. Common materials each have trade-offs:

• Cotton is soft and comes in endless prints, but absorbs water and can fade with washing.
• Nylon webbing is strong, light and easy to clean; many patterned collars use a fabric layer over nylon.
• Leather lasts for years with care, but dislikes repeated soaking.
• Biothane and coated webbing are waterproof and good for swimmers and muddy walks.

Hardware matters more than the pattern

Look for welded D-rings (a visible seam means a bent ring that can open under strain), metal buckles or sturdy side-release buckles, and smooth stitching where the webbing folds back. Clip-on ID tags should hang from the D-ring, not the leash attachment. For strong pullers, consider a martingale collar or a harness rather than relying on a flat collar alone.

Choosing a leash

• Length: 4 feet keeps a dog close in busy areas; 5–6 feet gives more freedom on quiet walks. Many city ordinances set a maximum length.
• Width: match it roughly to your collar width and your dog's strength.
• Clip: a swivel hook prevents tangling; check that the spring gate snaps shut firmly.
• Handle: a padded or soft handle helps if your dog pulls.

Bandanas and bow ties

Decorative accessories should never be tight or easy to chew off. Slip-over bandanas thread onto an existing collar, which avoids tying a knot around the neck. Bow ties usually attach with elastic loops or Velcro. For both, size to your dog's neck and collar width, leave two fingers of room, take them off for unsupervised time and crate time, and check that small parts cannot be swallowed.

Before you order online

• Read the size chart for the exact item; sizes are not standardized between brands.
• Check the return policy. Handmade and personalized items are often final sale, so measure twice.
• Allow extra time for made-to-order items, especially before holidays.
• Check care instructions: many fabric accessories should be hand washed and air dried.

A quick checklist

• Neck measured snug, with the two-finger rule checked
• Collar width suits your dog's size and strength
• Welded D-ring, solid buckle and neat stitching
• Leash length and clip suit where you walk
• Bandana or bow tie sized to the collar it attaches to
• Return policy, processing time and care instructions checked

For an example of a small handmade brand that sells slip-over bandanas, bow ties and matching sets, see our Savvy Chic Pawz review.