I purchased this for my son as his first halloween outfit. He was a long baby- about 25 inches when he wore this costume. He weighed in just under 15 lbs at the time he wore this. It fit him well. There wasn't a whole lot of room for much more of a baby. I would say that if your baby is more than 17-18lbs, this wouldnt fit well, or if the baby is longer than 27 inches.

The material is not top notch. It worked well for a one time halloween wear but I am pretty sure it wouldnt hold up well for any sort of daily use. It was a pretty warm material so if it is warmer than 60ish you might choose another option. The patch on the front wasn't as huge as in the photo shown (which was a good thing)- it was just the right size. The cape was sewn on which was a nice feature because it didn't get tugged off. I really liked the fold over flap at the foot of the costume. It made diaper changes very easy.

I would recommend this to a friend or family member.