I purchased these at Costco. It's a set of 3 long-sleeved T-shirts. They are size 3T, which I believe is roughly equivalent to Japanese sizes 90-100. They show signs of wear, but I think they are still wearable. The orange long-sleeved T-shirt has some loose stitching. Please check the photos. The striped long-sleeved T-shirt has some peeling on the number logo. These would be great for dinosaur lovers or for a change of clothes at daycare. Please understand that these are used items before purchasing. #dinosaur #longsleevedTshirt #boys #size90-100