Yoyorule Fashion Pet Dog Cat Cute Princess T-shirt Clothes Vest Summer Coat Puggy Costumes Your pet will feel very cool and comfortable when in spring, autumn and summer. XS: Back Length 7.87". Bust 12.2". Neck 7.87". S: Back Length 9.44" . Bust 14.57". Neck 9.84". M: Back Length 11.42". Bust 16.93". Neck 11.02". L: Back Length 14.17". Bust 18.11". Neck 14.17".