This is a T-shirt from the bakery "Wazawaza x Yohaku." The color is gray. It uses a tightly woven, durable cotton knit fabric. It has a moderate thickness, is not see-through, and is a material that is resistant to shape loss even after washing. It's a raglan sleeve pullover. There are no noticeable stains, etc., but Please note that this is a home-stored, amateur inspection, so there may be oversights.