Description Hi-vis Safety Vest for Dogs 3 sizes. This high visibility vest is perfect for late night walks and winter strolls to make sure your dog is visible to you and other people. Colour – Neon Yellow Comes in 3 sizes: S – back 28cm, neck 33-38cm, chest 49-54cm M – 33cm, neck 40-46cm, chest 49-54cm L – 43cm, neck 50-55cm, chest 70-75cm Try Leader dog food.