Gray in the inside Blue on the outside Handmade dog collar featuring USA paracord with a contoured black buckle and a "D" ring. Collar is approximately 3/4 inches wide. To find the correct collar size loosely measure the neck where the collar would normally sit sliding two fingers between the dog's neck and cloth measuring tape. Adding the two fingers should make the collar size about 2" larger than the dog's neck size. Paracord is strong, durable, mold, mildew rot, UV resistant, and hand washable.