These NWT vintage Gymboree leggings are from the 2010 Girl's Best Friend collection in toddler girls' sizes.  The light whirlpool blue knit leggings are covered with brown and brown polka dot puppy dogs.  They have an elastic waist and lettuce edge hems. 
 
From the 2010 Girl's Best Friend collection.
10 GY WINTER CAP
 
140072198-GYW004
 
Note:  The 18-24M leggings are mis-packaged in a 2T wrapper.