Features:Unique chin rest,Breathable mesh,Buoyancy pearl cotton,Thicken handles. Highlighting the reflective strip:Easy to see where your baby dog is when he/she is playing in the water. Sandwich structure breathable mesh:Quickly for baby perspiration and its clothes to dry. Velcro design:Provides double security around the dog’s body and neck. Notice:Please Refer to Left Size Chart Picture or Size Details in the Description before placing order. Please allow 1-2cm differs due to manual measurement, thanks.