Purchased on Amazon, brand new and unused. I have opened it once for photography. Size is M. Please refer to the second photo. ■Product Contents■ Excellent winter cold protection! Moca thermal lining: Uses fluffy moca on the inside. With the warmth and softness of real fur, it protects your dog's paws from cold floors and ground. It allows your dog to spend warm and comfortable days, and is also ethically considered. Supports stable walking! Non-slip sole & lightweight design: The non-slip sole provides stable walking on indoor flooring and outdoor asphalt. The lightweight design of 30-45g per shoe prevents your dog's steps from becoming heavy, maintaining natural walking. Prevents dirt & licking, and cares for your dog's health: Makes wiping your dog's paws easier on rainy days and after walks, keeping the interior clean. Furthermore, wearing shoes is effective in preventing "paw licking," which can cause allergies and injuries. Classic brown color & 4-piece set: The calm brown color is a classic design that suits any dog. A set includes 4 shoes, 2 for each foot, so you can use them right away. #CaramelMocaGoods [4-piece set thermal lining dog shoes] Winter non-slip dog boots dog socks protection indoor/walking use Velcro difficult to remove small and medium-sized dogs compatible brown (brown, M), dog boots