Athletic Quick-Dry Fabric: Made from a polyester and spandex blend with moisture-wicking technology, this lightweight fabric dries quickly after swimming or sweating. The stretchy sleeveless design ensures full freedom of movement allowing unrestricted play for active small, medium and large dogs during hikes or beach runs, keeping your pet cool and comfortable on hot days Sun Protection: The fabric acts as a UV-blocking shield to protect your dog's skin from sunburn during summer play or outdoor adventures, preventing overheating and ensuring carefree fun without skin irritation. Also acts as a protective barrier for dogs with allergies, alopecia or other skin issues Reflective Safety Label: Featuring a unique reflective bone label on the back, this tank top enhances visibility for safer evening walks, making your dog easily spotted at night Durable & Easy Care: Pilling-resistant fabric holds up through frequent machine washes without losing shape. The 2-pack design provides a easy rotation so your pet always has a clean outfit ready for daily adventures About Size: Size XL is suitable for medium breeds such as French Bulldog and Beagle. Please don't choose the size based on your usual size, measure your pet's chest girth in priority, and back length, get the right size based on KYEESE size chart. If your pet is still growing or between the sizes, please do size up KYEESE 2-pack dog shirts deliver functional apparel for small to large dogs, blending comfort with fashion. Crafted from 92% polyester and 8% spandex, these sleeveless vests are moisture-wicking and quick-drying, ideal for athletic activities and hot weather, provide skin protection from strong sunlight while remaining breathable. The shirt includes a reflective bone label for enhanced visibility on night walks, and features high-stretch fabric for unrestricted movement during jogging, hiking, and camping. The set includes two solid-color shirts, both with a round neck for easy on/off. Machine washable and pilling-resistant for durable everyday wear.