Blazin O So Comfy O-Ring Reflective Neoprene Waterproof Dog Collar, Blue, X-Large: 18.9 to 21.7-in neck, 1.25-in wide

A: Measure around your dog's neck where the collar will sit, allowing for two fingers of space. Since sizes run slightly small, consider the next size up if your measurement is close to the maximum for a size.

A: Yes, the O-ring design keeps all hardware away from your dog's skin, and the soft neoprene padding provides gentle cushioning around the neck area.

A: Yes, this collar is machine washable. For best results, use cold water and air dry to maintain the integrity of the nylon and neoprene materials.

A: The collar features a 100% nylon strap construction with 100% neoprene padding for comfort and durability.

A: Slide the strap through the plastic buckle and adjust until the collar fits snugly but comfortably on your dog. You should be able to fit two fingers between the collar and your dog's neck. Avoid making it too tight, which can cause discomfort.

A: The O-ring design prevents any part of the collar hardware from touching your dog's skin. This is for maximum comfort. When securing the collar, place the 'tongue' through the metal O-ring before inserting into the buckle.