Red plaid. Featuring our super soft and fast-drying neoprene material on the inner lining of the collar for maximum comfort. We also added an extra special clip for holding your dog's tags. Small collar: 11"- 18" x .8" / 30cm - 48cm x 2cm. Large collar: 16"- 25" x 1" / 40cm - 63cm x 2.5cm. Soft and fast-drying neoprene for neck comfort. Neoprene is used in most human wet suits - exceptionally durable, breathable and comfortable for any condition. Outer-facing polyester printed material.