I bought a large amount of dresses from a retired lady on Etsy. I am going to list them. My baby is old. I am 69 years old. So, I probably will not be getting any more fur babies. The lady that I bought the dresses from no longer sews. I really do not know if the material is polyester or cotton. I think it is polyester. The material seems to be strong. The items that I bought from her was well handcrafted. She payed special attention in making sure that all her items were well constructed and could withstand a lot of wear. The detail she payed attention to could be easily seen in the dress. There is a ring that you can attach a leash to and walk your dog. There is a metal anchor on the ring. The dress is so cute and fancy. The waist, with the velcro completely close is 13 inches. The velcro is 2 inches. So, if you need a little more room, you have some adjustment room. The neck is 8 inches. The velcro is 2.25. So, there is some adjustment room in the neck, if you need it. The dress is approximately 10 inches long. Get your fur baby dolled up. I am selling the dresses for a lot less then I bought them for. If you have any questions, please ask. Please check out my other listings. Have a pleasant and blessed day.