zifeipet dog anxiety vest puppy anxiety relief jacket keep calm thunder vest coat for large dogs zifeipet specifications<br><br> -size: xs: chest :13-17inches, fit for weight 9-14 lbs<br> s: chest :17-21inches, fit for weight 15-25lbs<br> m: chest :21-25 inches, fit for weight 26-40 lbs<br> l: chest :25-30 inches, fit for weight 41-64 lbs<br> ¡¡¡¡xl:chest : 30-37 inches, fit for weight 65-110 lbs<br> -material: made of breathable and durable fabric, give the dogs best care<br> -reflective strip on dogs¡ ̄ neck for night walking safety<br> -hoop and loop design make it easy to put on and take off<br> -massage particles on the back,give your pet constant care.<br><br> fitting instruction<br><br> step1: dog thunder vest over the back of your dog, lightly wrap chest strap around the front of the dog and secure with fasteners<br> step2: wrap the short flap down on to the long flap and secure with fasteners, adjust for a comfortably snug fit as necessary<br>