Made with White Premium Short Sleeve bodysuit or toddler tee. Sizing chart included in photos to determine the best size for your little one. If between sizes, I recommend sizing up. ~ ORDERING INSTRUCTIONS Select SIZE (check sizing chart photos) Select QUANTITY for the number of onesies in that size you would like to purchase Select VARIATION between the two images in the listing (Mommy's Future **Please indicate sport** or Future Olympian) ~ Personalization For Mommy's Future Variation, please indicate in personalization box: Mommy, Daddy, Brother, Sister, Uncle, Aunt, etc Sport (Track, Skiing, Soccer, Cycling, Football, Hockey, Etc) ~ SHIPPING This item will ship First Class Mail, but you can upgrade to expedited shipping at checkout if needed.