Casual long-sleeved top with a blue polka dot pattern and a message print. - Color: Blue (polka dot) - Design: Printed (message) - Sleeve Length: Long sleeve - Material: 100% cotton - Style: Casual Thank you for viewing. I don't know the brand, but the tag says Marutaka Ryō, so I think it's the same company as Moujonjon. It's thicker than a T-shirt.