This is an adorable addition to my pup’s wardrobe. Ticks are a big problem in Northern Michigan so this tee shirt is a necessity. This is my second dog to wear Insect Repellent Gear. The first tee shirt I bought lasted 7 years until my former pup’s death last summer. I’ve been very satisfied over the seven years I’ve been using this gear on my pets. Not only is the fabric treated but it also provides a comfortable, lightweight barrier from all sorts of insects, wet grass, mud, etc. A wonderful product that I highly recommend. For reference, this pup is almost 10 lbs and wearing a small.