Optional Sizes - 4 mini sizes to choose from: mini S (3.5 x 3 cm); mini-M (4.5 x 3.6cm); mini-L (5.3 x 4cm); mini XL (5.9 x 4.8cm). These shoes are suitable for miniature dogs and small breeds. Breathable and comfortable: made of high quality neoprene and with a double layer mesh upper, several ventilation holes for breathing, provide air circulation and let your dog’s paws breathe freely, helping to keep paws comfortable and in good condition. Sturdy anti-slip soles: multiple rubber particles to increase the friction, excellent abrasion resistance for longer life. Suitable for indoor and outdoor activities, such as daily walking, strolling, running, hiking, traveling, etc. Great for your dog: these boots can protect their paws from being hurt by hot sidewalks, hardwood floors and rough floors. They protect your dog’s paws from rough stones, sand or any abrasive surface, while keeping them clean, comfortable, dry and warm. Product Description Color:Black Sizes: Mini S: 3.5 x 3 cm.