Celebrate your little one's first Halloween with our adorable My First Trick or Treat Halloween Baby Onesie! This personalized onesie is printed with your baby's name and the year of his/her first Halloween on a high-quality 100% Cotton Bodysuit. This cute outfit will make your baby the star of the night. Available in sizes ranging from newborn to 24 months. These white 100% organic cotton Onesies will be either Gerber or Carters, depending on the size you choose. Available in sizes ranging from newborn to 24 months. These white 100% organic cotton Onesies will be either Gerber or Carters brand, depending on the size you choose. Size Chart: Short Sleeve Sizing: Newborn - 17-21 in./ 5-8 Lbs. 0–3 Months (For Carters - 3 Months) - 21-24 in. / 6-12 Lbs. 3–6 Months - (For Carters - 6 Months) - 24-26 in. / 12-16 Lbs. 6–9 Months (For Carters - 9 Months)- 26-28 in. / 16-20 Lbs. 12 Months - 28-30 in. / 20-24 Lbs. 18 Months - 30-32 in. / 24-28 Lbs. 24 Months - 32-34 in. / 28-32 Lbs.