'Look'! So cute.A santa claus riding on his reindeer is coming us. Made of cotton material, it is easy to put on or off and don't bother your dog's walking. Size S: neck length:7.1'-13.8'; chest length:10.2'-17.3'. Size M: neck length: 11'-20.5'; chest length: 13.8'-24.8'. Size L: neck length 19.7'-25.6';chest length: 25.6'-29.5'.