The Ancol Cooling Dog Coat is ideal for keeping your dog nice and cool as the temperatures heat up!Simply immerse the coat in clean cold water for one minute, until it is fully saturates and gently wring out the excess water. Fit the vest onto your dog and the kelvinator effect of the moisture evaporating from the coat ensures that your dogs temperature will be reduced. As the vest slowly dries, just re-soak it, to re-engage the cooling properties. The Ancol Cooling coat is antibacterial and machine washable. Measuring Your Dog For Their CoatWhen measuring your dog for their new dog coat, it is important that you measure from the base of the neck to the start of the tail. This is where the head joins the body and where the tail joins the body. Make sure your dog is standing squarely upright on all four legs and is looking straight ahead for an accurate measurement. Once you have done this you then need to refer to the size chart. If your dog’s size does not match the size we have, then you should round up for dogs with downward tails and round down for dogs with upward tails. Size Guide Large – 50cm Medium – 40cm Small – 30cm**PLEASE NOTE: Should you need to return this item, please ensure that it is in the condition it arrived complete with tags and original packaging to be eligible for a full and immediate refund/exchange.