Cotton.   Durable, comfortable, breathable enough, easy to wear and clean. 
Pets' skin would be easy to get sunburnt after shaving, and it would help reducing dropping hair in the house and avoid staining grass or other dirt when walking your pets.
Cool Summer Fruit Pattern: dress or vest to choose from,fresh and elegant look.   Vivid and bright colors will definitely make your pooch stand out from the crowd.
Fashion Style: Easy to put on and take off.   Fashion,will be the best gift for your dog.  Perfect for every day wear, sleep time and photos.