A size 4 costume fits a back length of 12.5", chest of 16-18.5", neck of 10.5-12", and weighing 11-14lbs. This pilgrim costume is black with a white collar and sleeve trim on all four legs. A real metal buckle detail sits in the center of this costume, and it comes complete with a matching hat. Snap closures keep it snug while your pet dresses up for Halloween, Thanksgiving, and other occasions.