Very cute mask, slightly too large for a 3 year old. I tied loops in the elastic and it fits just fine.
I’m impressed with how comfortable and breathable this mask is. There’s also a pocket for a filter. It’s a tiny bit big on my petite 4yr old, but I just use an “ear saver” and then it fits perfectly. The mask part is just the right size, the ear loops are just a little loose on her. I’ll definitely order another one if the rainbow pattern comes back in stock!