UV Coverup Dog Top. A top that's great for your pup to wear when you're outside! This lightweight coverup is made of a stretchy quick-drying fabric that has a UPF of 40+ making it ideal for those sunny days outside. There's a hole on the back for easy leash attachment too! Our model Rosie a 25 lb. Mutt is wearing a size M.Sizing:XS: Chest: 13-16 in. | Length: 12 in. | For pets 5-10 lbs.S: Chest: 15-21 in. | Length: 14 in. | For pets 9-20 lbs.M: Chest: 19-25 in. | Length: 17 in. | For pets 20-30 lbs.L: Chest: 22-28 in. | Length: 21 in. | For pets 25-45 lbs.XL: Chest: 26-32 in. | Length: 24 in. | For pets 40-70 lbs.XXL: Chest: 30-38 in. | Length: 28 in. | For pets 60-90 lbs.