The extra-large is 1" wide and adjusts to fit a 18-24" neckline. Green ribbon has a lighthearted and playful squirrel and colorful acorn design. All Up Country designer ribbon collars are made from high-tensile strength nylon webbing with sewn on polyester/nylon ribbons. The ribbons are stain and fray resistant and designed to last a lifetime. All collar and lead hardware is cast, not welded brass. Collars fasten with a Quick-Release Buckles which are Coast Guard approved for high weight hold. Machine washable, air dry. Made in the USA.