Sleeveless nightgown from Gymboree. Brand new with tags. The original price was $29.95.

Size chart:

3/XXS fits 36-39 inches & 33-36 pounds
4/XS fits 39-42 inches & 36-40 pounds
5-6/S fits 42-48 inches & 40-52 pounds
7-8/M fits 48-54 inches & 52-74 pounds
10-12/L fits 54-60 inches & 74-98 pounds
14/XL fits 60-62 inches & 98-110 pounds