Note: if what you get is without Alroman tag,you could ask seller to refund you the full money, because what you get is not authentic Alroman product. If seller refused to refund you, you could contact Amazon to report this. Four sizes: XS fits approx 2.2lbs~3.3lbs;S fits approx 3.3lbs~5.5lbs,M fits approx 6.6lbs~8.8lbs;L fits approx 8.8lbs~11lbs, which perfectly fits for various pets. Suitable for: Teddy, Chihuahua, Miniature pinscher and other small dogs or cats. Please do check the size chart carefully to make sure you choose the correct size for your dogs or cats. Thanks! Every seam is tight and well stitched,high quality safety environmental polyester fabric, very moisture wicking, soft and breathable T-shirt pretty suitable for the summer season. White color with manly muscle pattern design makes this T-shirt especially adorable and fashionable for your pet dogs. Durable materials: made of strong polyester cloth, wear-resistant and durable,soft,comfortable and breathable. It's really an excellent gift for your pet dogs and also for dog lovers. Delivery time: it actually takes about 10-15 days when you choose Standard at checkout, which is earlier than the default shipping time 17~28 days on Amazon.