Shark Week! Reversible bandana! The bandanas consist of two layers of soft cotton material, and all seams are serged for durability. Please keep checking back for more one-of-a-kind styles. SIZING: Using a flexible cloth tape measure, string, or ribbon, measure around the base of your dog's neck. Add a few inches if your dog has a fluffy or thick coat. Thanks! Please supervise your pet when they wear a Franklin's Finery bandana and do not allow them to chew on or consume any part of this product. *I love doing custom orders, so if you have a unique t-shirt or logo that you would like made into a bandana for your dog, please message me.