T shirt was reasonable quality fabric and was bought for a large 8 year old (not fat) and it just fits. I think it will be the same for the soon to be 10 year old so, I would have to say that there is very little lee way in the sizing.
The Koala print was a little small and the colours made it look more like a panda.
It also smelled of paint.
Very happy with this product.
Superb quality products.the material of both the bag and the t shirt are to very high standard the colours are perfect and by looking at them I think both material and colour will be very long lasting.looking new for longer.id highly recommend. And will defiantly buy more products.