Waterproof and Odor-Resistant: Poly-coated nylon resists moisture and prevents odor absorption. Durable and Comfortable: Tough material that stays soft and flexible for your dog’s comfort. Easy to Clean: Wipe down with water for hassle-free maintenance. Secure Fit: Tight hole spacing provides an accurate, adjustable fit. Nickel-Plated Hardware: Includes a D ring by the buckle and a center O ring for multiple leash attachment options Made in the USA: Built with quality and precision. 18 inch: Fits neck sizes 11” to 18”, 21 inch: Fits neck sizes 14” to 21” Equip your dog with the Outdoor Dog Supply 1" Solid Premium Waterproof Dog Collar, a heavy-duty, customizable collar crafted from waterproof, odor-resistant poly-coated nylon. Designed for rugged outdoor adventures, daily walks, and training, this collar offers unmatched durability and comfort for medium and large breeds. Keep your dog safe and stylish—order your personalized waterproof dog collar today! Key Features: Material: Premium poly-coated nylon, waterproof, odor-resistant, soft, and easy to clean (wipe with a damp cloth or sponge) for lasting performance. Hardware: Nickel-plated D-ring near the buckle and center O-ring for versatile leash attachment, ideal for training or hiking (not intended for saltwater or chlorine use). Fit: Tight hole spacing ensures a secure, adjustable fit, perfect for active dogs in any environment. Durability: Engineered for tough conditions, this solid-design collar is proudly made in the USA with superior craftsmanship. Sizes: 18 inch: Fits neck sizes 11” to 18” 21 inch: Fits neck sizes 14” to 21” Measurement: From the center of the buckle to the last hole. Customizable Nametag Material: 3/4” brass, rust-resistant with raised lettering for clear, long-lasting readability. Customization: Up to 4 lines, 18 characters per line for personalized dog identification, perfect for safety and style. Allowed Characters: Letters: A–Z (uppercase only) Numbers: 0–9 Special characters: – , . / ' & @ $ ( ) : " + Suitable Breeds: Medium Dog Breeds (Avg. Neck Sizes 12”–18”): Beagle: 12”–16” Border Collie: 12”–18” French Bulldog: 12”–18” Jack Russell Terrier: 12”–16” Shiba Inu: 13”–16” Basset Hound: 14”–18” Pug: 12”–16” Miniature Schnauzer: 12”–17” Large Dog Breeds (Avg. Neck Sizes 16”–24”): Golden Retriever: 18”–24” Labrador Retriever: 18”–24” Boxer: 16”–22” German Shepherd: 18”–24” Dalmatian: 18”–22” Bulldog (English): 18”–24” Australian Shepherd: 16”–22” Standard Poodle: 16”–22” Bernese Mountain Dog: 20”–26”